{"title":"Relay Modules for Arduino \u0026 Electronics","description":"\u003ch2\u003eRelay Modules for Arduino \u0026amp; Electronics – Control High-Power Loads with Low-Voltage Signals\u003c\/h2\u003e\u003cp\u003eExplore our comprehensive range of \u003cstrong\u003erelay modules, solid state relays (SSR), time delay relays, and optocoupler-isolated relay boards\u003c\/strong\u003e – designed for \u003cstrong\u003eArduino, Raspberry Pi, PLC, and DIY electronics projects\u003c\/strong\u003e. Switch AC\/DC loads safely with 5V\/12V\/24V control signals.\u003c\/p\u003e\u003ch3\u003eWhat's in This Collection\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Channel Relay Modules\u003c\/strong\u003e – 1\/2\/4\/8-channel 5V\/12V\/24V optocoupler relay boards with high\/low level trigger for Arduino \u0026amp; Raspberry Pi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid State Relay (SSR) Modules\u003c\/strong\u003e – G3MB-202P and SSR-10DA\/40DA DC-controlled AC solid state relays with aluminum heat sinks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime Delay \u0026amp; Timer Relay Modules\u003c\/strong\u003e – NE555 monostable timer switches, adjustable power-off delay relays, and LCD programmable timer relays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight \u0026amp; Sensor Relay Modules\u003c\/strong\u003e – LDR photoresistor relay modules 5V\/12V\/24V with automatic brightness detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReed \u0026amp; Infrared Relay Modules\u003c\/strong\u003e – SIP-1A05 reed relays and IR receiver relay driver modules for remote control applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWemos D1 Mini Relay Shield\u003c\/strong\u003e – 1-channel relay shield for ESP8266 IoT and smart home projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose Keszoox Relay Modules?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ Optocoupler isolation – protects your microcontroller from high-voltage spikes\u003c\/li\u003e\n\u003cli\u003e✅ 5V\/12V\/24V compatible – works with Arduino, Raspberry Pi, ESP8266, PLC\u003c\/li\u003e\n\u003cli\u003e✅ High\/low level trigger options\u003c\/li\u003e\n\u003cli\u003e✅ Bulk quantities in stock – ready to ship worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBrowse our \u003ca href=\"\/collections\/relay-modules-arduino-electronics\"\u003efull relay module collection\u003c\/a\u003e or explore our \u003ca href=\"\/collections\/automotive-industrial-relays\"\u003eautomotive and industrial relays\u003c\/a\u003e at Keszoox.\u003c\/p\u003e","products":[{"product_id":"uln2803a-8-channel-darlington-driver","title":"ULN2803A 8-Channel Darlington Transistor Array IC DIP-18 — 500mA \/ 50V, Arduino Relay Driver","description":"\u003ch2\u003eULN2803A — 8-Channel Darlington Transistor Array, DIP-18\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eULN2803A\u003c\/strong\u003e is an 8-channel NPN Darlington transistor array IC — the most widely used driver IC for interfacing microcontrollers to high-current loads. Each of its 8 channels can sink up to \u003cstrong\u003e500mA at 50V\u003c\/strong\u003e, with built-in flyback diodes on every output for inductive load protection. Connect any 8 Arduino or microcontroller GPIO pins to the inputs, and the ULN2803A drives 8 relays, solenoids, stepper motor coils, or high-power LEDs simultaneously — no external transistors, no external diodes, no additional components required.\u003c\/p\u003e\u003cp\u003eThe ULN2803A is the 8-channel version of the popular ULN2003A (7-channel). Its DIP-18 package is breadboard-compatible, and its 5V-compatible inputs work directly with Arduino, ESP32, STM32, and Raspberry Pi GPIO pins.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 independent Darlington channels\u003c\/strong\u003e — each rated 500mA @ 50V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in flyback diodes\u003c\/strong\u003e on all outputs — relay and solenoid protection included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V logic compatible inputs\u003c\/strong\u003e — direct connection to Arduino, ESP32, Raspberry Pi GPIO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive-low outputs\u003c\/strong\u003e — output sinks current when input is HIGH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo external components required\u003c\/strong\u003e for basic relay\/solenoid driving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIP-18 package\u003c\/strong\u003e — breadboard and through-hole PCB compatible\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage (max)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current (per channel)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500mA continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage (logic HIGH)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.4V – 5V (TTL\/CMOS compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Current (per channel)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~1mA @ 5V input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlyback Diodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in on all 8 outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOpen-collector (active-low sink)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIP-18 (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTexas Instruments \/ STMicroelectronics \/ Toshiba\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eULN2803A vs ULN2003A\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eULN2003A:\u003c\/strong\u003e 7 channels, DIP-16 — standard choice for 7-segment displays and 7-coil stepper motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eULN2803A (this):\u003c\/strong\u003e 8 channels, DIP-18 — preferred for 8-relay boards, 8-channel output expanders, and full-byte I\/O driving\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay board driver\u003c\/strong\u003e — drive 8 relays from a single IC with built-in flyback protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStepper motor driver\u003c\/strong\u003e — drive bipolar or unipolar stepper motor coils (4-coil motors)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolenoid valve array\u003c\/strong\u003e — control 8 solenoids from Arduino or PLC output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-power LED driver\u003c\/strong\u003e — drive 8 high-current LEDs or LED segments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7-segment display driver\u003c\/strong\u003e — common-anode display digit driver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput expander\u003c\/strong\u003e — extend microcontroller I\/O to drive 8 high-current loads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eArduino Wiring (Basic Relay Driver)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eULN2803A inputs (pins 1–8) → Arduino digital pins\u003c\/li\u003e\n\u003cli\u003eULN2803A COM pin (pin 10) → relay coil positive supply (5V or 12V)\u003c\/li\u003e\n\u003cli\u003eULN2803A outputs (pins 11–18) → relay coil negative terminals\u003c\/li\u003e\n\u003cli\u003eArduino GND → ULN2803A GND (pin 9)\u003c\/li\u003e\n\u003cli\u003eNo external diodes needed — flyback diodes are built in\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × ULN2803A 8-Channel Darlington Array IC (DIP-18)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e\u003ca href=\"https:\/\/www.ti.com\/lit\/ds\/symlink\/uln2803a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eULN2803A Datasheet (Texas Instruments PDF)\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674499342571,"sku":"","price":1.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ULN2803-Darlington-Transistor-Array-1.jpg?v=1723007229"},{"product_id":"light-sensitive-ldr-relay-module-5v-auto-night-light-10a-spdt","title":"Light Sensitive LDR Relay Module 5V — Auto Night Light Controller, 10A SPDT, Adjustable Threshold","description":"\u003ch2\u003eLight Sensitive LDR Relay Module — 5V, 10A SPDT, Automatic Light-Level Switching\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLight Sensitive LDR Relay Module\u003c\/strong\u003e is a self-contained automatic switching module that energizes or de-energizes a 10A relay based on ambient light level — no microcontroller required. Connect 5V power, wire your load to the relay terminals, adjust the onboard potentiometer to set the brightness threshold, and the module automatically switches your load ON or OFF as light levels change. The included \u003cstrong\u003eLDR (Light Dependent Resistor) sensor on a 10″ (25cm) lead\u003c\/strong\u003e allows remote positioning of the sensor away from the module.\u003c\/p\u003e\n\n\u003cp\u003eTypical use: automatically turn on a security light, garden light, or night light when ambient brightness drops below a preset level at dusk, and turn it off at dawn — completely autonomously, without any programming or microcontroller.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully autonomous operation\u003c\/strong\u003e — no microcontroller or programming required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable light threshold\u003c\/strong\u003e — onboard potentiometer sets the brightness trip-point (CW = higher threshold)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A SPDT relay contacts\u003c\/strong\u003e — switches up to 250VAC @ 10A or 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth NO and NC contacts\u003c\/strong\u003e — switch load ON or OFF when light drops below threshold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote LDR sensor\u003c\/strong\u003e — 10″ (25cm) lead for flexible sensor positioning; extendable by splicing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue LED indicator\u003c\/strong\u003e — illuminates when relay is energized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed power LED\u003c\/strong\u003e — confirms 5V supply is connected\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in flyback diode\u003c\/strong\u003e — protects against relay coil back-EMF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — diode on 5V power input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLM393 comparator IC\u003c\/strong\u003e — stable, hysteresis-free threshold detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~5mA (relay off) \/ ~55mA (relay energized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Rating (AC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115VAC @ 10A \/ 250VAC @ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Rating (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15V DC @ 10A (recommended max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO + NC + COM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThreshold Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer (CW = higher threshold)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLDR on 10″ (25cm) lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComparator IC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLM393\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e53 × 31 × 20mm (2.09 × 1.2 × 0.79″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWiring Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePower (2-pin screw terminal):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e → 5V DC supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e → Ground\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLoad (3-pin screw terminal):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO (top)\u003c\/strong\u003e → Load connects here to switch ON when relay energizes (light drops below threshold)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOM (center)\u003c\/strong\u003e → AC or DC power source for the load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNC (bottom)\u003c\/strong\u003e → Load connects here to switch ON when relay de-energizes (light above threshold)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTheory of Operation\u003c\/h3\u003e\n\u003cp\u003eThe LDR sensor resistance increases as ambient light decreases. An \u003cstrong\u003eLM393 voltage comparator\u003c\/strong\u003e monitors the LDR voltage divider output against the potentiometer-set reference voltage. When brightness drops below the threshold, the comparator output switches, energizing the relay (blue LED ON). When brightness rises above the threshold, the relay de-energizes (blue LED OFF). The potentiometer adjusts the reference voltage — turning CW raises the threshold, making the module trigger at higher light levels.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC voltage limit:\u003c\/strong\u003e Relay contacts can become sticky above ~15V DC. Limit DC switching to 15V or below.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC performance:\u003c\/strong\u003e Tested successfully switching a 1500W \/ 12.5A heater load without issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreshold calibration:\u003c\/strong\u003e Point LDR at light source, adjust pot until blue LED just turns off. Shielding LDR should then trigger the relay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC safety:\u003c\/strong\u003e When switching mains AC voltage, ensure all connections are properly insulated and inaccessible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic dusk-to-dawn security light and garden light controller\u003c\/li\u003e\n\u003cli\u003eNight light and corridor light automation\u003c\/li\u003e\n\u003cli\u003eGreenhouse supplemental lighting controller (lights on when dark)\u003c\/li\u003e\n\u003cli\u003ePhotography darkroom safelight automation\u003c\/li\u003e\n\u003cli\u003eAquarium lighting automatic day\/night cycle\u003c\/li\u003e\n\u003cli\u003eIndustrial machine light-level interlock\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Light Sensitive LDR Relay Module 5V\u003c\/li\u003e\n\u003cli\u003e1 × LDR sensor on 10″ (25cm) lead\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681408573675,"sku":"","price":9.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Light-Sensitive-LDR-Relay-Module-5V.jpg?v=1723005960"},{"product_id":"light-sensitive-relay-module-5v","title":"Light Sensitive Relay Module 5V","description":"\u003cp\u003e\u003cspan\u003eAutomatically control a load based on ambient light detection.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe Light Sensitive Relay Module 5V can automatically control a load such as a night security light based on the ambient light level.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLight Sensitive Relay Module 5V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF LIGHT SENSITIVE RELAY  MODULE 5V:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in photodiode sensor automatically controls the relay based on light intensity.\u003c\/li\u003e\n\u003cli\u003eDetects both visible and infrared light\u003c\/li\u003e\n\u003cli\u003eAdjustable light level set-point\u003c\/li\u003e\n\u003cli\u003eControls loads of 115\/230VAC @ 10A\u003c\/li\u003e\n\u003cli\u003eControls loads of 0 – 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003eLED indicator when relay is energized\u003c\/li\u003e\n\u003cli\u003e5V power operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a self-contained switching module that energizes \/ de-energizes a relay based on the the detection of light, both visible and infrared.   Just add 5V power and hook up the load you want to control then adjust the potentiometer to set the brightness level at which you want the relay to switch between ON \/ OFF.\u003c\/p\u003e\n\u003cp\u003eThis type of module can be used for applications such as to automatically turning a light on when the ambient brightness goes below a preset level as might be the case for a outside security light or night light.  It can also detect a flame under some conditions.\u003c\/p\u003e\n\u003cp\u003eThe diode is sensitive primarily to light that strikes it from the rounded end rather than the side which gives the sensor some directionality.\u003c\/p\u003e\n\u003ch3\u003eTheory of Operation\u003c\/h3\u003e\n\u003cp\u003eThe light sensor on the module is a light detecting photodiode .\u003c\/p\u003e\n\u003cp\u003eThe brightness level trip-point for triggering the relay can be adjusted using the potentiometer on the module.  Turning the pot CW increases the brightness trip-point.\u003c\/p\u003e\n\u003cp\u003eWhen the brightness goes over the trip-point value, an LM393 voltage comparator IC energizes the relay and it switches ON.  A green LED is illuminated when the relay is energized.\u003c\/p\u003e\n\u003cp\u003eWhen the brightness drops below the preset value, the relay switches back OFF.\u003c\/p\u003e\n\u003cp\u003eThe relay has both NO (Normally Open) and NC (Normally Closed) contacts so the module can either be used to energize a load when brightness goes up past the trip-point value or when it goes down past that level.\u003c\/p\u003e\n\u003cp\u003eA flyback diode is included on the module in parallel to the relay coil to safely shunt current when the relay coil is de-energized.\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003ch4\u003ePOWER\u003c\/h4\u003e\n\u003cp\u003eThe module requires 5V power and ground to operate.  There is a red LED that is lit when power is applied to the module.   When the relay is energized, the module draws about 80mA from the Vcc pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 2 Header (Power Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e = Connect to 5V power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e = Connect to ground of the 5V power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eLOAD\u003c\/h4\u003e\n\u003cp\u003eThe output of the relay is rated to switch up to 30VDC at 10A or up to 250VAC at up to 10A (\u003cstrong\u003eSee our notes below\u003c\/strong\u003e).\u003c\/p\u003e\n\u003cp\u003eThe output is SPDT type with both a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Open) terminal and a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Closed) terminal relative to the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCOM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eterminal.  When the relay is de-energized (green LED OFF) the NO-COM is open and the NC-COM is shorted.  When the relay is energized (green LED ON) the NO – COM is shorted and the NC-COM is open.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 3 Screw Terminal (Load Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTop = Normally Open relay contact – Load is connected to this terminal if it should switch ON when relay is energized.\u003c\/li\u003e\n\u003cli\u003eCenter = Common connection – Connects to AC or DC power source for load that is being controlled.\u003c\/li\u003e\n\u003cli\u003eBottom = Normally Closed relay contact – Load is connected to this terminal if it should switch ON when relay is de-energized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice inexpensive modules that will work for a number of applications and allow you to control devices based on sensing presence or absence of light without the need to have an MCU involved.  Just hook up 5V power and your load and you are all set.\u003c\/p\u003e\n\u003cp\u003eThe sensing works best when detecting a brighter light source and can be set to be fairly sensitive and detect shadows or other changes in the light intensity.  Under fairly low light level changes, the sensor may not detect a difference as easily.  Some amount of empirical testing and adjustment is usually need to find the right adjustment point.\u003c\/p\u003e\n\u003cp\u003eWe do find the DC rating of the relay to be too aggressive. With DC voltages above about 15V, the contacts can become a little sticky. We recommend using it to switch DC voltages of no more than 15V.\u003c\/p\u003e\n\u003cp\u003eWith AC, the relays performed very well in our testing.  To test the upper limit we used it to switch a 1500W heater that draws about 12.5A and the relay handled it without any problems.\u003c\/p\u003e\n\u003cp\u003eTo test the device, connect it to 5V.  While pointing the photodiode towards a light source, adjust the pot so that the green LED just comes on.  Shielding the photodiode from the light should then cause the green LED to go off and an audible click can be heard from the relay as it switches.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample inspected and tested per incoming shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eNone\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"760\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e \u003cstrong\u003eVcc\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eTypical\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e DC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e15V @ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 115VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 250VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H (PCB)\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e50 x 27 x 18mm (2 x 1.1 x 0 .71″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681415454955,"sku":"","price":8.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Photosensitive-Relay-Module-5V-1.jpg?v=1723005952"},{"product_id":"light-sensitive-ldr-relay-module-12v","title":"Light Sensitive LDR Relay Module 12V","description":"\u003cp\u003e\u003cspan\u003eAutomatically control a load based on the ambient light level.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe Light Sensitive LDR Relay Module 12V can automatically control a load such as a night security light based on the ambient light level.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLight Sensitive LDR Relay Module 12V w\/ LDR sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF LIGHT SENSITIVE LDR RELAY  MODULE 12V:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically controls the relay based on light intensity\u003c\/li\u003e\n\u003cli\u003eIncluded LDR (Light Dependent Resistor) sensor on 10″ lead detects visible light\u003c\/li\u003e\n\u003cli\u003eAdjustable light level set-point\u003c\/li\u003e\n\u003cli\u003eControls loads of 115\/230VAC @ 10A\u003c\/li\u003e\n\u003cli\u003eControls loads of 0 – 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003eBoth NO (Normally Open) and NC (Normally Closed) contacts\u003c\/li\u003e\n\u003cli\u003eLED indicator when relay is energized\u003c\/li\u003e\n\u003cli\u003e12V power operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a self-contained switching module that energizes \/ de-energizes a relay based on the the detection of visible light.   Just add 12V power and hook up the load you want to control then adjust the potentiometer to set the brightness level at which you want the relay to switch between ON \/ OFF.\u003c\/p\u003e\n\u003cp\u003eThis type of module can be used for applications such as to automatically turning a light on when the ambient brightness goes below a preset level as might be the case for a outside security light or night light.  It can also detect a flame under some conditions.\u003c\/p\u003e\n\u003cp\u003eThe LDR sensor is attached to a 10″ lead for remote mounting.  The lead can be spliced to increase its length if desired.\u003c\/p\u003e\n\u003ch3\u003eTheory of Operation\u003c\/h3\u003e\n\u003cp\u003eThe light sensor on the module is a light sensitive resistor (LDR) .\u003c\/p\u003e\n\u003cp\u003eThe brightness level trip-point for triggering the relay can be adjusted using the potentiometer on the module.  Turning the pot\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCW\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincreases the brightness trip-point.\u003c\/p\u003e\n\u003cp\u003eWhen the brightness goes below the trip-point value, an LM393 voltage comparator IC energizes the relay and it switches\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eON\u003c\/strong\u003e.  A blue LED is illuminated when the relay is energized.\u003c\/p\u003e\n\u003cp\u003eWhen the brightness increases above the preset value, the relay switches back\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOFF\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe relay has both NO (Normally Open) and NC (Normally Closed) contacts so the module can either be used to energize a load when brightness goes up past the trip-point value or when it goes down below that level.\u003c\/p\u003e\n\u003cp\u003eA flyback diode is included on the module in parallel to the relay coil to safely shunt current when the relay coil is de-energized.  The module also has a reverse polarity protection diode on the 12V power input.\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003ch4\u003ePOWER\u003c\/h4\u003e\n\u003cp\u003eThe module requires 12V power and ground to operate.  There is a red LED that is lit when power is applied to the module.   When the relay is de-energized it draws approximately 10mA.  When energized, the module draws about 40mA from the Vcc pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 2 Screw Terminal (Power Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Connect to 12V power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Connect to ground of the 12V power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eLOAD\u003c\/h4\u003e\n\u003cp\u003eThe output of the relay is rated to switch up to 30VDC at 10A or up to 250VAC at up to 10A (\u003cstrong\u003eSee our notes below\u003c\/strong\u003e).\u003c\/p\u003e\n\u003cp\u003eThe output is SPDT type with both a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Open) terminal and a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Closed) terminal relative to the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCOM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eterminal.  When the relay is de-energized (blue LED OFF) the NO-COM connection is open and the NC-COM connection is shorted.  When the relay is energized (blue LED ON) the NO – COM connection is shorted and the NC-COM connection is open.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 3 Screw Terminal (Load Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Normally Open relay contact – Load is connected to this terminal if it should switch ON when relay is energized.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Common connection – Connects to AC or DC power source for load that is being controlled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Normally Closed relay contact – Load is connected to this terminal if it should switch ON when relay is de-energized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice inexpensive modules that will work for many applications and allow you to control devices based on sensing light without the need to have an MCU involved.  Just hook up 12V power and your load and you are all set.\u003c\/p\u003e\n\u003cp\u003eThe sensing works over a fairly wide range of light intensities.  The potentiometer provides a relative rather than absolute setting, so setting the trip point will require some amount of trial and error.  Positioning of the light sensor will also have an affect on the setting.\u003c\/p\u003e\n\u003cp\u003eWe do find the DC rating of the relay to be too aggressive. With DC voltages above about 15V, the contacts can become a little sticky. We recommend using it to switch DC voltages of no more than 15V.\u003c\/p\u003e\n\u003cp\u003eWith AC, the relays performed well in our testing.  To test the upper limit we used it to switch a 1500W heater that draws about 12.5A and the relay handled it without any problems.\u003c\/p\u003e\n\u003cp\u003eTo test the device, connect it to 12V.  While pointing the LDR sensor towards a light source, adjust the pot so that the blue LED just goes off.  Shielding the LDR from the light should then cause the blue LED to turn on and an audible click heard from the relay as it switches.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInspected\u003c\/li\u003e\n\u003cli\u003eLDR sensor \/ relay operation verified\u003c\/li\u003e\n\u003cli\u003eRepackaged in high quality resealable ESD bag for safe storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eNone\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"760\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e \u003cstrong\u003eVcc\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e12V @ 40mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e DC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e15V @ 10A (Max recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 115VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 250VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H (PCB)\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e53 x 31 x 20mm (2.09 x 1.2 x 0 .79″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681419124971,"sku":"","price":7.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Light-Sensitive-LDR-Relay-Module-12V.jpg?v=1723005941"},{"product_id":"humidity-sensitive-relay-module-5v","title":"Humidity Sensitive Relay Module 5V","description":"\u003cp\u003e\u003cspan\u003eFor control of a load such as a fan or misting pump based on relative humidity level\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe Humidity Sensitive Relay Module 5V can automatically control a load such as a fan or misting pump based on the humidity level.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHumidity Sensitive Relay Module 5V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF HUMIDITY SENSITIVE RELAY  MODULE 5V:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in HR202 humidity sensor automatically controls the relay based on humidity level.\u003c\/li\u003e\n\u003cli\u003eAdjustable humidity set-point\u003c\/li\u003e\n\u003cli\u003eControls loads of 115\/230VAC @ 10A\u003c\/li\u003e\n\u003cli\u003eControls loads of 0 – 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003eLED indicator when relay is energized\u003c\/li\u003e\n\u003cli\u003e5V power operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a self-contained switching module that energizes \/ de-energizes a relay based on the humidity level.   Just add 5V power and hook up the load you want to control then adjust the potentiometer to set the relative humidity level at which you want the relay to switch between ON \/ OFF.\u003c\/p\u003e\n\u003cp\u003eThis type of module can be used for applications such as to automatically turn on an exhaust fan when the humidity gets above a preset level as might be the case in a green house or aquarium room or it could be used to energize a misting system, such as for orchids, when the humidity drops below a preset level.\u003c\/p\u003e\n\u003ch3\u003eTheory of Operation\u003c\/h3\u003e\n\u003cp\u003eThe humidity sensor on the module is an HR202.\u003c\/p\u003e\n\u003cp\u003eThe humidity level trip-point for triggering the relay can be adjusted using the potentiometer on the module.  Turning the pot CW increases the humidity trip-point.\u003c\/p\u003e\n\u003cp\u003eWhen humidity goes over the trip-point value, an LM393 voltage comparator IC turns on a transistor that energizes the relay coil and it switches ON.  A green LED is illuminated when the relay is energized.\u003c\/p\u003e\n\u003cp\u003eWhen the humidity drops below the preset value, the relay switches back OFF.  A flyback diode is included on the module in parallel to the relay coil to safely shunt current when the relay coil is de-energized.\u003c\/p\u003e\n\u003cp\u003eThe relay has both NO (Normally Open) and NC (Normally Closed) contacts so the module can either be used to energize a load when humidity goes up past the trip-point value such as an exhaust fan in a greenhouse or when it goes down past that level such as turning on a humidifier to increase the humidity.\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003ch4\u003ePOWER\u003c\/h4\u003e\n\u003cp\u003eThe module requires 5V power and ground to operate.  There is a red LED that is lit when power is applied to the module.   When the relay is energized, the module draws about 80mA from the Vcc pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 2 Header (Power Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Connect to 5V power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Connect to ground of the 5V power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eLOAD\u003c\/h4\u003e\n\u003cp\u003eThe output of the relay is rated to switch up to 30VDC at 10A or up to 250VAC at up to 10A (See our notes below about safely switching VDC).\u003c\/p\u003e\n\u003cp\u003eThe output is SPDT type with both a NO (Normally Open) terminal and a NC (Normally Closed) terminal relative to the COM terminal.  When the relay is de-energized (green LED OFF) the NO-COM is open and the NC-COM is shorted.  When the relay is energized (green LED ON) the NO – COM is shorted and the NC-COM is open.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 3 Screw Terminal (Load Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTop = Normally Open relay contact – Load is connected to this terminal if it should switch ON when relay is energized.\u003c\/li\u003e\n\u003cli\u003eCenter = Common connection – Connects to AC or DC power source for load that is being controlled.\u003c\/li\u003e\n\u003cli\u003eBottom = Normally Closed relay contact – Load is connected to this terminal if it should switch ON when relay is de-energized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice inexpensive modules that will work for many applications and allow you to control devices based on humidity without the need to have an MCU involved.  Just hook up 5V power and your load, fiddle with the adjustment and you are all set.\u003c\/p\u003e\n\u003cp\u003eThe adjustment is not an absolute value, rather it is a relative value so it is not possible to adjust it to switch at exactly 60% humidity for instance.  It takes a little trial and error to get it to switch at the approximate humidity value where you want it to switch.\u003c\/p\u003e\n\u003cp\u003eWe do find the DC rating of the relay to be too aggressive. With DC voltages above about 15V, the contacts can become a little sticky. We recommend using it to switch DC voltages of no more than 15V.\u003c\/p\u003e\n\u003cp\u003eWith AC, the relays performed well in our testing switching 120V @ 10A.\u003c\/p\u003e\n\u003cp\u003eTo test the device, connect it to power and adjust the pot so that the green LED just goes out.  Breathing on the humidity sensor which increases humidity should cause the green LED to come on and an audible click heard from the relay as it switches.  After a short while, the relay should switch back off as the humidity falls.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInspected\u003c\/li\u003e\n\u003cli\u003eBasic humidity sensor \/ relay operation verified\u003c\/li\u003e\n\u003cli\u003eRepackaged in high quality resealable ESD bag for safe storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eNone\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"760\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003e Vcc\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eTypical\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e DC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e15V @ 10A  (Tested to 15V @ 6A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 115VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 250VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eModule Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H (PCB)\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e50 x 27 x 18mm (2 x 1.1 x 0 .71″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e\u003c\/td\u003e\n\u003ctd width=\"229\"\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681442062571,"sku":"","price":10.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Humidity-Sensitive-Relay-5V-1.jpg?v=1723005936"},{"product_id":"temperature-sensitive-relay-module-5v","title":"Temperature Sensitive Relay Module 5V","description":"\u003cp\u003e\u003cspan\u003eControl a load based on the temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe Temperature Sensitive Relay Module 5V can automatically control a load such as a fan or heating device based on the temperature.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature Sensitive Relay Module 5V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF TEMPERATURE SENSITIVE RELAY  MODULE 5V:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in thermistor temperature sensor automatically controls the relay based on temperature.\u003c\/li\u003e\n\u003cli\u003eAdjustable temperature set-point\u003c\/li\u003e\n\u003cli\u003eControls loads of 115\/230VAC @ 10A\u003c\/li\u003e\n\u003cli\u003eControls loads of 0 – 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003eLED indicator when relay is energized\u003c\/li\u003e\n\u003cli\u003e5V power operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a self-contained switching module that energizes \/ de-energizes a relay based on the temperature.   Just add 5V power and hook up the load you want to control then adjust the potentiometer to set the temperature at which you want the relay to switch between ON \/ OFF.\u003c\/p\u003e\n\u003cp\u003eThis type of module can be used for applications such as to automatically turn on an exhaust fan when the temperature gets above a preset level as might be the case in a green house or aquarium room or it could be used to energize a heating device when the temperature drops below a preset level.\u003c\/p\u003e\n\u003ch3\u003eTheory of Operation\u003c\/h3\u003e\n\u003cp\u003eThe temperature sensor on the module is a standard thermistor.\u003c\/p\u003e\n\u003cp\u003eThe temperature trip-point for triggering the relay can be adjusted using the potentiometer on the module.  Turning the pot CW increases the temperature trip-point.\u003c\/p\u003e\n\u003cp\u003eWhen the temperature goes over the trip-point value, an LM393 voltage comparator IC energizes the relay and it switches ON.  A green LED is illuminated when the relay is energized.\u003c\/p\u003e\n\u003cp\u003eWhen the temperature drops below the preset value, the relay switches back OFF.\u003c\/p\u003e\n\u003cp\u003eThe relay has both NO (Normally Open) and NC (Normally Closed) contacts so the module can either be used to energize a load when temperature goes up past the trip-point value or when it goes down past that level.\u003c\/p\u003e\n\u003cp\u003eA flyback diode is included on the module in parallel to the relay coil to safely shunt current when the relay coil is de-energized.\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003ch4\u003ePOWER\u003c\/h4\u003e\n\u003cp\u003eThe module requires 5V power and ground to operate.  There is a red LED that is lit when power is applied to the module.   When the relay is energized, the module draws about 80mA from the Vcc pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 2 Header (Power Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Connect to 5V power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Connect to ground of the 5V power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eLOAD\u003c\/h4\u003e\n\u003cp\u003eThe output of the relay is rated to switch up to 30VDC at 10A or up to 250VAC at up to 10A (See our notes below about the maximum VDC that can be switched).\u003c\/p\u003e\n\u003cp\u003eThe output is SPDT type with both a NO (Normally Open) terminal and a NC (Normally Closed) terminal relative to the COM terminal.  When the relay is de-energized (green LED OFF) the NO-COM is open and the NC-COM is shorted.  When the relay is energized (green LED ON) the NO – COM is shorted and the NC-COM is open.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 3 Screw Terminal (Load Connections)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTop = Normally Open relay contact – Load is connected to this terminal if it should switch ON when relay is energized.\u003c\/li\u003e\n\u003cli\u003eCenter = Common connection – Connects to AC or DC power source for load that is being controlled.\u003c\/li\u003e\n\u003cli\u003eBottom = Normally Closed relay contact – Load is connected to this terminal if it should switch ON when relay is de-energized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are inexpensive modules that will work for a number of applications and allow you to control devices based on temperature without the need to have a uC involved.  Just hook up 5V power and your load and you are all set.\u003c\/p\u003e\n\u003cp\u003eWe do find the DC rating of the relay to be too aggressive. With DC voltages above about 15V, the contacts can become a little sticky. We recommend using it to switch DC voltages of no more than 15V.\u003c\/p\u003e\n\u003cp\u003eWith AC, the relays performed very well in our testing.  To test the upper limit we used it to switch a 1500W heater that draws about 12.5A and the relay handled it without any problems though you should not exceed 10A in normal use.\u003c\/p\u003e\n\u003cp\u003eTo test the device, connect it to power and adjust the pot so that the green LED just goes out.  Warming the thermistor should cause the green LED to come on and an audible click heard from the relay as it switches.\u003c\/p\u003e\n\u003cp\u003eTo adjust the pot for the final application will take a little trial and error since the module uses a relative adjustment rather than being able to set it to a specific temperature level.  There is also quite a bit of hysteresis in the switching.  If you are trying to maintain a particular temperature with a level of precision, check out our W1209 and W1219 temperature controller modules below which may offer better value for your application.\u003c\/p\u003e\n\u003cp\u003eIf the module has long leads on the thermistor, ensure the leads stay separated and do not touch each other or the sensor will not work.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample inspected and tested per incoming shipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eThe length of the leads on the thermistor can vary from relatively short to fairly long as shown in the pictures.\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"760\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003e Vcc\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eTypical\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e DC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e15V @ 10A  (Tested to 15V @ 6A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 115VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 250VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eModule Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H (PCB)\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e50 x 27 x 18mm (2 x 1.1 x 0 .71″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eHole pattern\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e44.5 x 20.5mm (1.75 x 0.80″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eHole size\u003c\/td\u003e\n\u003ctd width=\"229\"\u003eM3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e\u003c\/td\u003e\n\u003ctd width=\"229\"\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681450647787,"sku":"","price":8.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Temperature-Sensitive-Relay-5V-1.jpg?v=1723005930"},{"product_id":"hrs1h-s-dc5v-miniature-pcb-relay-5v-coil-3a-spdt-125-250vac","title":"HRS1H-S-DC5V Miniature PCB Relay — 5V Coil, 3A SPDT, 125\/250VAC, 0.1″ Pitch, Through-Hole","description":"\u003ch2\u003eHRS1H-S-DC5V — Miniature PCB Relay, 5V Coil, 3A SPDT, 125\/250VAC\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHRS1H-S-DC5V\u003c\/strong\u003e is a miniature SPDT electromechanical relay with a \u003cstrong\u003e5V DC coil\u003c\/strong\u003e, rated to switch up to \u003cstrong\u003e125\/250VAC or 24VDC at 3A\u003c\/strong\u003e (90W maximum). Its six pins are spaced on standard \u003cstrong\u003e0.1″ (2.54mm) centers\u003c\/strong\u003e, making it directly compatible with perfboard and prototype PCBs. This is the relay used in the majority of Chinese-made solid state relay modules and relay breakout boards — available here as a standalone component for custom relay circuit design, module repair, or homebrew switching applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant power limit:\u003c\/strong\u003e Maximum switching power is 90W total. At 110VAC, maximum current is 0.8A. At 12VDC, full 3A is available. At 24VDC, full 3A is available.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40mA @ 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnergize Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥3.75V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelease Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContact Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO + NC + COM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Voltage (AC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125V \/ 250V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Voltage (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24V DC max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Switching Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin Spacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1″ (2.54mm) — perfboard compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15.6 × 10.6 × 11.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHKE (Hongfa \/ HRS series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePinout (viewed from pin side \/ bottom)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOM\u003c\/strong\u003e — Common contact. Connect to load power source or ground. Two COM pins are provided; only one needs to be connected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNC\u003c\/strong\u003e — Normally Closed. Connected to COM when relay is de-energized. Opens when relay energizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO\u003c\/strong\u003e — Normally Open. Disconnected from COM when relay is de-energized. Closes when relay energizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOIL (2 pins)\u003c\/strong\u003e — Connect one to 5V, other to ground (or transistor collector). Pins are interchangeable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDriving the Relay from a Microcontroller\u003c\/h3\u003e\n\u003cp\u003eThe relay coil draws \u003cstrong\u003e40mA at 5V\u003c\/strong\u003e — exceeding the 20–40mA maximum of most MCU GPIO pins. \u003cstrong\u003eDo not drive directly from Arduino or ESP32 GPIO.\u003c\/strong\u003e Use a small NPN transistor (2N3904, 2N2222, PN2222A) as a driver:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMCU GPIO → 2.2KΩ base resistor → transistor base\u003c\/li\u003e\n\u003cli\u003eTransistor collector → relay coil pin\u003c\/li\u003e\n\u003cli\u003eRelay coil other pin → 5V\u003c\/li\u003e\n\u003cli\u003eTransistor emitter → GND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlyback diode (1N4148 or 1N4001)\u003c\/strong\u003e across coil pins (cathode to 5V side) — protects transistor from back-EMF when relay de-energizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLogic HIGH on MCU pin → transistor saturates → relay energizes. Logic LOW → relay de-energizes.\u003c\/p\u003e\n\n\u003ch3\u003eInductive Load Protection\u003c\/h3\u003e\n\u003cp\u003eWhen switching inductive DC loads (motors, solenoids), add a \u003cstrong\u003eflyback diode (1N4001 or larger)\u003c\/strong\u003e directly across the load terminals to prevent contact welding when the relay de-energizes.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCustom relay breakout board design (homebrew relay module)\u003c\/li\u003e\n\u003cli\u003eRelay module repair and replacement\u003c\/li\u003e\n\u003cli\u003eLow-current AC switching (lamps, fans, small appliances up to 90W)\u003c\/li\u003e\n\u003cli\u003e12V\/24V DC load switching (solenoids, motors, LED strips)\u003c\/li\u003e\n\u003cli\u003eArduino and ESP32 relay driver circuits (with transistor driver)\u003c\/li\u003e\n\u003cli\u003eIndustrial control panel relay replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × HRS1H-S-DC5V Miniature PCB Relay (5V coil, 3A SPDT, through-hole)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e\u003ca href=\"http:\/\/www.hankukrelay.co.kr\/eng\/img\/product\/hke\/pdf\/HRS1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eHRS1H-S-DC5V Datasheet (HKE PDF)\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681461919979,"sku":"","price":4.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/HRS1H-S-DC5V-3A-Relay.jpg?v=1723005919"},{"product_id":"g3mb-202p-solid-state-relay-5v-logic-100-240vac-2a-zero-cross","title":"G3MB-202P Solid State Relay — 5V Logic Input, 100–240VAC \/ 2A Output, Zero-Cross, Opto-Isolated","description":"\u003ch2\u003eG3MB-202P Solid State Relay — 5V Logic, 100–240VAC \/ 2A, Zero-Cross Switching\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOmron G3MB-202P\u003c\/strong\u003e is a miniature single-channel solid state relay (SSR) that switches \u003cstrong\u003e100–240VAC at up to 2A\u003c\/strong\u003e from a \u003cstrong\u003e5V logic control signal\u003c\/strong\u003e. Unlike electromechanical relays, the G3MB-202P has no moving parts — it switches silently, instantly, and with no contact wear. Built-in \u003cstrong\u003ephototriac coupler isolation\u003c\/strong\u003e provides electrical separation between the low-voltage control circuit and the mains AC load. \u003cstrong\u003eZero-cross switching\u003c\/strong\u003e minimizes electrical noise and inrush current by switching only at the AC waveform zero-crossing point.\u003c\/p\u003e\n\n\u003cp\u003eThe G3MB-202P is the SSR used in the majority of Chinese-made SSR relay modules. Available here as a standalone component for custom SSR circuit design, module repair, or direct integration into PCB designs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4–6V DC (5V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic HIGH threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic LOW threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤1.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Input Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;14mA (directly drivable from MCU GPIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75–264VAC (recommended: 100–240VAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1–2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Inrush Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30A (8.3ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZero-cross (switches at AC waveform zero point)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePhototriac coupler (built-in opto-isolation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPST Normally Open (NO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery half-cycle (~8.3ms @ 60Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24.5 × 20.5 × 5.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSSR vs Electromechanical Relay — Key Differences\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eElectromechanical Relay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eG3MB-202P SSR (this)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoving parts\u003c\/td\u003e\n\u003ctd\u003eYes (contacts wear over time)\u003c\/td\u003e\n\u003ctd\u003eNo (unlimited switching life)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching noise\u003c\/td\u003e\n\u003ctd\u003eAudible click\u003c\/td\u003e\n\u003ctd\u003eSilent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching speed\u003c\/td\u003e\n\u003ctd\u003e~10ms\u003c\/td\u003e\n\u003ctd\u003e~8.3ms (zero-cross)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC switching\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo (AC only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel operation\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo (do not parallel for higher current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax current\u003c\/td\u003e\n\u003ctd\u003e10A+ typical\u003c\/td\u003e\n\u003ctd\u003e2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWiring Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 3 (+)\u003c\/strong\u003e → MCU GPIO (logic HIGH = relay ON). Draws \u0026lt;14mA — safe for direct GPIO connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 4 (−)\u003c\/strong\u003e → GND (shared with MCU ground)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput terminals (1, 2)\u003c\/strong\u003e → In series with AC load and AC power source\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e When switching mains AC voltage, ensure all connections are properly insulated and inaccessible. The G3MB-202P body is not insulated — mount on an insulating surface or use an SSR module with enclosure.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Limitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC only\u003c\/strong\u003e — cannot switch DC voltages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo parallel operation for higher current\u003c\/strong\u003e — SSRs do not share current equally; the first to turn on carries full load until it fails\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo dimming\u003c\/strong\u003e — zero-cross switching means ON\/OFF only, not phase-angle dimming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2A maximum\u003c\/strong\u003e — for higher current AC switching, use a larger SSR or electromechanical relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino \/ ESP32 AC mains switching (lamps, fans, small appliances ≤2A)\u003c\/li\u003e\n\u003cli\u003e3D printer heated bed control (12V DC bed — use electromechanical relay instead)\u003c\/li\u003e\n\u003cli\u003eAquarium heater and pump control\u003c\/li\u003e\n\u003cli\u003eHVAC zone valve control\u003c\/li\u003e\n\u003cli\u003eCustom SSR module design and PCB integration\u003c\/li\u003e\n\u003cli\u003eSSR relay module repair and component replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Omron G3MB-202P Solid State Relay\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681462739179,"sku":"","price":6.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/G3MB-202P-Solid-State-Relay-2A.jpg?v=1723005910"},{"product_id":"relay-breakout-module-5v","title":"Relay Breakout Module 5V","description":"\u003cp\u003e\u003cspan\u003e5V logic compatible relay that can control up to 125\/250VAC @ 10A  or up to 15VDC @ 10A.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe Relay Breakout Module 5V is a logic compatible relay that can control up to 125\/250VAC @ 10A  or up to 15VDC @ 10A.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRelay Breakout Module 5V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF RELAY BREAKOUT MODULE 5V:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch AC up to 125\/250VAC @ 10A\u003c\/li\u003e\n\u003cli\u003eSwitch DC up to 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003eNormally Open (NO) and Normally Closed (NC) contacts\u003c\/li\u003e\n\u003cli\u003eLED indicator when relay is energized\u003c\/li\u003e\n\u003cli\u003e5V logic compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRelay modules are handy for controlling external loads.  Unlike transistors used for switching, relays use metallic switch contacts which avoids the power loss and heating inherent in transistor switching circuits.  They are also  nicely contained little modules that are simple to hook-up and are especially useful for switching AC.  The main downside to relays is that being an electro-mechanical device, like any switch relays are more prone to wear and tear from prolonged use.\u003c\/p\u003e\n\u003ch3\u003eModule Control\u003c\/h3\u003e\n\u003cp\u003eThese relays are fully 5V logic compatible. The input has a relay driver transistor built-in which means the device only needs about 5mA on the logic control pin to drive it.  If you have a uC like an Arduino, you can drive the relay using any of the digital output pins.\u003c\/p\u003e\n\u003cp\u003eThe relay is activated with a logic\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLOW\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esignal.  There is a green LED that is lit when the control pin is driven low to activate the relay.  When the relay is activated an audible click will be heard.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHIGH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edeactivates the relay and the LED will go off.\u003c\/p\u003e\n\u003ch3\u003eModule Power\u003c\/h3\u003e\n\u003cp\u003eThe module requires 5V power and Gnd to operate.\u003c\/p\u003e\n\u003cp\u003eAt least the ground should be shared with the microcontroller.  There is a red LED that is lit when Vcc is applied to the module.  A flyback diode is included on the module in parallel to the relay coil to safely shunt current when the relay coil is de-energized.\u003c\/p\u003e\n\u003cp\u003eWhen the relay is energized, the module draws about 80mA from the Vcc pin.\u003c\/p\u003e\n\u003ch3\u003eRelay Operation\u003c\/h3\u003e\n\u003cp\u003eThe output of the relay is rated to switch up to 30VDC at 10A per the relay markings (\u003cstrong\u003esee our notes below\u003c\/strong\u003e) or up to 125\/250VAC at up to 10A.\u003c\/p\u003e\n\u003cp\u003eThe output is SPDT type with both a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Open) terminal and a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Closed) terminal relative to the center unmarked common (\u003cstrong\u003eCOM\u003c\/strong\u003e) terminal.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eLOW\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eenergizes the relay, so the NO–COM contact is closed and the NC-COM contact is open.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHIGH\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eor no input de-energizes the relay and the NO-COM contact is open and the NC-COM contact is closed.\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003cp\u003eThere is a 3-pin header on the assembly for logic and power as well as 3 screw terminals for making connections to the relay contacts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 3 Header \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e‘-‘\u003c\/b\u003e = Ground.  Must be in common with the uC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e‘+’\u003c\/strong\u003e = 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS =\u003c\/strong\u003e Signal input.  Connects to digital output pin on uC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Contacts\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Normally Closed side of the relay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Terminal\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Common terminal usually connects to the power source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Normally Open side of the relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice little relay modules that will work for many power control applications.\u003c\/p\u003e\n\u003cp\u003eWe did find the DC rating of the relay to be too aggressive. With DC voltages above about 15V, the contacts can become a little sticky. If using it to switch DC voltages, I recommend limiting the voltage to 15V or lower.\u003c\/p\u003e\n\u003cp\u003eWith AC, the relays performed very well in our testing.  To test the upper limit we used it to switch a 1500W heater which drew about 12.5A which is greater than its rated current and the relay handled it without any problems for 10 power cycles.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample inspected and tested per incoming shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eThis module is the same or similar to the KY-019\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"780\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eOperating Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic High\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026gt; 2.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic Low\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 2.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eDrive Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e14mA (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eVcc\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eContact Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e DC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e15V @ 10A  (Tested to 15V @ 6A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e125\/250VAC @ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e34 x 26 x 20mm (1.3 x 1.0 x 0 .8″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681464115435,"sku":"","price":3.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Relay-Breakout-Module-5V-1.jpg?v=1723005906"},{"product_id":"1-channel-relay-module-5v-10a-spdt-active-low-arduino","title":"1-Channel Relay Module 5V — 10A SPDT, Active-Low, Opto-Isolated, Arduino Compatible","description":"\u003ch2\u003e1-Channel Relay Module — 5V, 10A SPDT, Active-Low Control, Arduino Compatible\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e1-channel 5V relay module\u003c\/strong\u003e is the most widely used relay module in Arduino and ESP32 projects worldwide — a complete, ready-to-use relay circuit on a single PCB. Connect 5V power, wire your load to the relay screw terminals, and control the relay with any Arduino digital output pin. The onboard transistor driver means the relay coil is driven by the module, not the MCU pin — only \u003cstrong\u003e~5mA from the GPIO pin\u003c\/strong\u003e is needed to switch a \u003cstrong\u003e10A load\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe relay is \u003cstrong\u003eactive-LOW\u003c\/strong\u003e: a logic LOW signal on IN1 energizes the relay (green LED ON, audible click). Logic HIGH or no connection de-energizes the relay. Both NO (Normally Open) and NC (Normally Closed) contacts are available on the screw terminal block.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A SPDT relay contacts\u003c\/strong\u003e — switches up to 250VAC @ 10A or 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive-LOW control\u003c\/strong\u003e — logic LOW energizes relay; logic HIGH de-energizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard transistor driver\u003c\/strong\u003e — only ~5mA from GPIO needed; safe for all MCU pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth NO and NC contacts\u003c\/strong\u003e — switch load ON or OFF when relay energizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen LED indicator\u003c\/strong\u003e — illuminates when relay is energized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed power LED\u003c\/strong\u003e — confirms 5V supply connected\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in flyback diode\u003c\/strong\u003e — protects driver transistor from relay coil back-EMF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew terminal block\u003c\/strong\u003e — secure load wiring without soldering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-pin header\u003c\/strong\u003e — GND \/ IN1 \/ VCC for direct Arduino connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~80mA when relay energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Logic\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActive-LOW (LOW = relay ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGPIO Current Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~5mA (transistor driver onboard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Rating (AC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125VAC @ 10A \/ 250VAC @ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Rating (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15V DC @ 10A (recommended max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO + NC + COM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic HIGH threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥4.2V (relay de-energizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWiring Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eControl header (3-pin):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e → Arduino GND (must share ground with MCU)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN1\u003c\/strong\u003e → Arduino digital output pin (LOW = relay ON)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e → 5V supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLoad screw terminal (3-pin):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO\u003c\/strong\u003e → Load terminal that connects to COM when relay energizes (IN1 LOW)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOM\u003c\/strong\u003e → AC or DC power source for the load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNC\u003c\/strong\u003e → Load terminal that connects to COM when relay is de-energized (IN1 HIGH)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eActive-LOW Logic — Important\u003c\/h3\u003e\n\u003cp\u003eThis module uses \u003cstrong\u003eactive-LOW control\u003c\/strong\u003e: \u003ccode\u003edigitalWrite(relayPin, LOW)\u003c\/code\u003e turns the relay ON; \u003ccode\u003edigitalWrite(relayPin, HIGH)\u003c\/code\u003e turns it OFF. This is the opposite of what many beginners expect. The logic HIGH threshold is ~4.2V — a pull-up resistor may be needed if the control signal is from an open-collector output or if the GPIO voltage is below 4.2V at HIGH.\u003c\/p\u003e\n\n\u003ch3\u003eDC Voltage Limit\u003c\/h3\u003e\n\u003cp\u003eThe relay contacts are rated 30VDC on the relay body markings, but \u003cstrong\u003eDC arc suppression is poor above ~15V\u003c\/strong\u003e. Contacts can become sticky or weld at higher DC voltages. \u003cstrong\u003eLimit DC switching to 15V or below.\u003c\/strong\u003e For AC switching, the module handles up to 250VAC @ 10A reliably (tested at 1500W \/ 12.5A heater load).\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino home automation — control lights, fans, appliances from GPIO\u003c\/li\u003e\n\u003cli\u003eESP32 \/ ESP8266 IoT relay control via Wi-Fi or MQTT\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi GPIO relay switching (with 3.3V–5V level shifter)\u003c\/li\u003e\n\u003cli\u003eAutomatic irrigation solenoid valve control\u003c\/li\u003e\n\u003cli\u003e12V DC motor and pump on\/off control\u003c\/li\u003e\n\u003cli\u003eSecurity system alarm and siren activation\u003c\/li\u003e\n\u003cli\u003eTemperature-controlled fan and heater switching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 1-Channel Relay Module 5V (10A SPDT, active-low, with screw terminals)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681467752683,"sku":"","price":6.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Relay-Module-1-x-5V.jpg?v=1723005895"},{"product_id":"relay-module-5v-x-2-relay-w-opto-isolation","title":"Relay Module 5V x 2 Relay w\/ Opto-isolation","description":"\u003cp\u003e\u003cspan\u003eTwo relays control up to 125\/250VAC@10A \/ 15VDC@10A.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe Relay Module 5V x 2 Relay w\/ Opto-isolation has two independent 5V logic compatible relays that control up to 125\/250VAC@10A or up to 15VDC@10A each.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRelay Module 5V x 2 Relay w\/ Opto-isolation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF RELAY MODULE 5V X 2 RELAY W\/ OPTO-ISOLATION:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2 independently controlled relays\u003c\/li\u003e\n\u003cli\u003eSwitch AC up to 125\/250VAC @ 10A\u003c\/li\u003e\n\u003cli\u003eSwitch DC up to 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003eNormally Open (NO) and Normally Closed (NC) contacts\u003c\/li\u003e\n\u003cli\u003eLED indicators when relays are energized\u003c\/li\u003e\n\u003cli\u003e5V logic compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRelay modules are handy for controlling external loads.  Unlike transistors used for switching, relays use metallic switch contacts which avoids the power loss and heating inherent in transistor switching circuits.  They are also nicely contained little modules that are simple to hook-up and are especially useful for switching AC.  The main downside to relays is that being an electro-mechanical device, like any mechanical switch relays are more prone to wear and tear over prolonged use.\u003c\/p\u003e\n\u003ch3\u003eModule Control\u003c\/h3\u003e\n\u003cp\u003eThese relays are fully 5V logic compatible. The inputs have a relay driver transistor and opto-isolator built-in which means the device needs \u0026lt; 5 mA on the logic control pin to drive it.  If you have a MCU like an Arduino, you can drive the relays using any of the digital output pins.\u003c\/p\u003e\n\u003cp\u003eThe relays are activated with a logic \u003cstrong\u003eLOW\u003c\/strong\u003e signal.  There is a red LED that is lit when the control pin for that relay is driven low to activate the relay.  When the relay is activated an audible click will be heard.  A logic \u003cstrong\u003eHIGH\u003c\/strong\u003e deactivates the relay and the LED will go off.\u003c\/p\u003e\n\u003ch3\u003eOpto-Isolation\u003c\/h3\u003e\n\u003cp\u003eThe board includes opto-isolators on the logic inputs.\u003c\/p\u003e\n\u003cp\u003eOpto-isolators provide complete electrical isolation between the logic control input and the relay power as an added layer of protection in case of a lighting strike or some other kind of major failure on the AC load of the relay.\u003c\/p\u003e\n\u003cp\u003eAs-shipped, the module has a jumper between header pins\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eJD-VCC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eVCC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(relay power is jumpered to logic power).  This bypasses the opto-isolation circuit as it ties the relay power to the logic power, but it makes the device easier to use since just one power supply needs to be connected to the module.\u003c\/p\u003e\n\u003cp\u003eIf it is desired to enable opto-isolation, remove the jumper and provide a separate 5V power supply voltage to the JD-VCC  and GND pins on that connector.\u003c\/p\u003e\n\u003ch3\u003eModule Power\u003c\/h3\u003e\n\u003cp\u003eThe module requires 5V power and Gnd to operate.  If opto-isolation is used, it will require two different 5V power sources.\u003c\/p\u003e\n\u003cp\u003eThe ground must be common with the MCU.   Flyback diodes are included on the module in parallel with the relay coils to safely shunt current when the relay coil is de-energized.\u003c\/p\u003e\n\u003cp\u003eWhen a relay is energized, the module draws about 70mA from the Vcc pin.  With both relays energized, the draw is about 140mA.\u003c\/p\u003e\n\u003ch3\u003eRelay Operation\u003c\/h3\u003e\n\u003cp\u003eThe output of the relay is rated to switch up to 30VDC at 10A per the relay markings (\u003cstrong\u003esee our notes below\u003c\/strong\u003e) or up to 125\/250VAC at up to 10A.\u003c\/p\u003e\n\u003cp\u003eThe output is SPDT type with both a \u003cstrong\u003eNO\u003c\/strong\u003e (Normally Open) terminal and a \u003cstrong\u003eNC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Closed) terminal relative to the center common (\u003cstrong\u003eCOM\u003c\/strong\u003e) terminal.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eLOW\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eenergizes the relay, so the NO–COM contact is closed and the NC-COM contact is open.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHIGH\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eor no input de-energizes the relay and the NO-COM contact is open and the NC-COM contact is closed.\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 4 Header\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e = Connect to ground of the 5V power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN1\u003c\/strong\u003e = Relay control input 1.  Logic LOW level energizes relay 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN2\u003c\/strong\u003e = Relay control input 2.  Logic LOW level energizes relay 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e = Connect to 5V power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Contacts\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSome modules may have these contacts labeled and some do not.  Refer to the pictures if the module is unlabeled.  Also note that the silkscreen markings show the contact arrangement when the module is de-energized.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNC\u003c\/strong\u003e = Normally Closed side of the relay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Terminal\u003c\/strong\u003e = Common terminal usually connects to the load power source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO\u003c\/strong\u003e = Normally Open side of the relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e1×3 Header\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJD-VCC\u003c\/strong\u003e = Opto-isolator power input.  Jumper to Vcc to run off same power supply as the logic (default mode).  If opto-isolation is desired, remove jumper and apply a separate 5V supply to this pin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e = Same as Vcc on the 1×4 header\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e = Same as GND on the 1×4 header.  Can be used to connect ground of separate 5V power supply (if used)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice inexpensive modules that will work for many applications.\u003c\/p\u003e\n\u003cp\u003eWe do find the DC rating of the relay to be too aggressive. With DC voltages above about 15V, the contacts can become a little sticky.  If using it to switch DC voltages, it is recommend to limit the voltage to 15V or lower.\u003c\/p\u003e\n\u003cp\u003eWith AC, the relays performed very well in our testing.  To test the upper limit we used it to switch a 1500W heater which drew about 12.5A and the relay handled it without any problems though for long-term use you should keep the current draw under 10A.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample inspected and tested per incoming shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eThe labeling on some of the relays like those pictured are incorrect.  It has 250V rating twice instead of the DCV rating.  125VAC is labeled as 15A.  It may do that from our testing, but published spec is 10A, so best to keep it below that level to be safe.\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"780\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eLogic Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e+5 Logic Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic High\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026gt; 2.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic Low\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 1.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eDrive Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e \u003cstrong\u003eVcc\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eTypical\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e DC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e15V @ 10A  (Tested to 15V @ 6A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 115VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10A  (Tested to 12.5A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 250VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 51 x 39 x 20mm (2 x 1.5 x 0 .8″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681472241899,"sku":"","price":6.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Relay-Module-2-x-5V.jpg?v=1723005889"},{"product_id":"relay-module-5v-x-4-relay-w-opto-isolation","title":"Relay Module 5V x 4 Relay w\/ Opto-isolation","description":"\u003cp\u003e\u003cspan\u003eFour independent 5V logic compatible relays control up to 125\/250VAC@10A or 15VDC@10A each.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe Relay Module 5V x 4 Relay w\/ Opto-isolation has four independent 5V logic compatible relays that control up to 125\/250VAC@10A or up to 15VDC@10A each.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRelay Module 5V x 4 Relay w\/ Opto-isolation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF RELAY MODULE 5V X 4 RELAY W\/ OPTO-ISOLATION:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4 independently controlled relays\u003c\/li\u003e\n\u003cli\u003eSwitch AC up to 125\/250VAC @ 10A\u003c\/li\u003e\n\u003cli\u003eSwitch DC up to 15VDC @ 10A\u003c\/li\u003e\n\u003cli\u003eNormally Open (NO) and Normally Closed (NC) contacts\u003c\/li\u003e\n\u003cli\u003eLED indicators when relays are energized\u003c\/li\u003e\n\u003cli\u003e5V logic compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRelay modules are handy for controlling external loads.  Unlike transistors used for switching, relays use metallic switch contacts which avoids the power loss and heating inherent in transistor switching circuits.  They are also nicely contained little modules that are simple to hook-up and are especially useful for switching AC.  The main downside to relays is that being an electro-mechanical device, like any mechanical switch relays are more prone to wear and tear over prolonged use.\u003c\/p\u003e\n\u003ch3\u003eModule Control\u003c\/h3\u003e\n\u003cp\u003eThese relays are fully 5V logic compatible. The inputs have a relay driver transistor and opto-isolator built-in which means the device needs \u0026lt; 5 mA on the logic control pin to drive it.  If you have a uC like an Arduino, you can drive the relays using any of the digital output pins.\u003c\/p\u003e\n\u003cp\u003eThe relays are activated with a logic \u003cstrong\u003eLOW\u003c\/strong\u003e signal.  There is a red LED that is lit when the control pin for that relay is driven low to activate the relay.  When the relay is activated an audible click will be heard.  A logic \u003cstrong\u003eHIGH\u003c\/strong\u003e deactivates the relay and the LED will go off.\u003c\/p\u003e\n\u003ch3\u003eOpto-Isolation\u003c\/h3\u003e\n\u003cp\u003eThe board includes opto-isolators on the logic inputs.\u003c\/p\u003e\n\u003cp\u003eOpto-isolators provide complete electrical isolation between the logic control input and the relay power as an added layer of protection in case of a lighting strike or some other kind of major failure on the AC load of the relay.\u003c\/p\u003e\n\u003cp\u003eAs-shipped, the module has a jumper between header pins \u003cstrong\u003eJD-VCC\u003c\/strong\u003e and \u003cstrong\u003eVCC\u003c\/strong\u003e (relay power is jumpered to logic power).  This bypasses the opto-isolation circuit as it ties the relay power to the logic power, but it makes the device easier to use since just one power supply needs to be connected to the module.\u003c\/p\u003e\n\u003cp\u003eIf it is desired to enable opto-isolation, remove the jumper and provide a separate 5V power supply voltage to the JD-VCC  and GND pins on that connector.\u003c\/p\u003e\n\u003ch3\u003eModule Power\u003c\/h3\u003e\n\u003cp\u003eThe module requires 5V power and Gnd to operate.  If opto-isolation is used, it will require two different 5V power sources.\u003c\/p\u003e\n\u003cp\u003eThe ground must be common with the uC.   Flyback diodes are included on the module in parallel with the relay coils to safely shunt current when the relay coil is de-energized.\u003c\/p\u003e\n\u003cp\u003eWhen a relay is energized, the module draws about 70mA from the Vcc pin.  With all four relays energized, the draw is about 280mA.\u003c\/p\u003e\n\u003ch3\u003eRelay Operation\u003c\/h3\u003e\n\u003cp\u003eThe output of the relay is rated to switch up to 30VDC at 10A per the relay markings (\u003cstrong\u003esee our notes below\u003c\/strong\u003e) or up to 125\/250VAC at up to 10A.\u003c\/p\u003e\n\u003cp\u003eThe output is SPDT type with both a \u003cstrong\u003eNO\u003c\/strong\u003e (Normally Open) terminal and a \u003cstrong\u003eNC\u003c\/strong\u003e (Normally Closed) terminal relative to the center unmarked common (\u003cstrong\u003eCOM\u003c\/strong\u003e) terminal.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eLOW\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eenergizes the relay, so the NO–COM contact is closed and the NC-COM contact is open.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHIGH\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eor no input de-energizes the relay and the NO-COM contact is open and the NC-COM contact is closed.\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 6 Header\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e = Connect to ground of the 5V power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN1\u003c\/strong\u003e = Relay control input 1.  Logic LOW level energizes relay 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN2\u003c\/strong\u003e = Relay control input 2.  Logic LOW level energizes relay 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN3\u003c\/strong\u003e = Relay control input 3.  Logic LOW level energizes relay 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN4\u003c\/strong\u003e = Relay control input 4.  Logic LOW level energizes relay 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e = Connect to 5V power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Contacts\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNC\u003c\/strong\u003e = Normally Closed side of the relay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Terminal\u003c\/strong\u003e = Common terminal usually connects to the load power source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO\u003c\/strong\u003e = Normally Open side of the relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e1×2 Header\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJD-VCC\u003c\/strong\u003e = Opto-isolator power input.  Jumper to Vcc to run off same power supply as the logic (default mode).  If opto-isolation is desired, remove jumper and apply a separate 5V supply to this pin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVcc\u003c\/strong\u003e = Same as Vcc on the 1×6 header\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice inexpensive modules that will work for many applications.\u003c\/p\u003e\n\u003cp\u003eWe did find the DC rating of the relay to be too aggressive. With DC voltages above about 15V, the contacts can become a little sticky.  If using it to switch DC voltages, I recommend limiting the voltage to 15V or lower.\u003c\/p\u003e\n\u003cp\u003eWith AC, the relays performed very well in our testing.  To test the upper limit we used it to switch a 1500W heater which drew about 12.5A and the relay handled it without any problems.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInspected\u003c\/li\u003e\n\u003cli\u003eRelay operation verified\u003c\/li\u003e\n\u003cli\u003eRepackaged in high quality resealable ESD bag for safe storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eThe labeling on some of the relays like those pictured are incorrect.  It has 250V rating twice instead of the DCV rating.  125VAC is labeled as 15A.  It may do that from our testing, but published spec is 10A, so best to keep it below that level to be safe.\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"765\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eLogic Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e+5 Logic Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic High\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026gt; 2.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic Low\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 1.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eDrive Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e \u003cstrong\u003eVcc\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eTypical\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e DC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e15V @ 10A  (Tested to 15V @ 6A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 115VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10A  (Tested to 12.5A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e 250VAC\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e76 x 56 x 20mm (3 x 2.2 x 0 .79″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681474109675,"sku":"","price":12.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Relay-Module-4-x-5V-View.jpg?v=1723005878"},{"product_id":"8-channel-relay-module-5v-10a-spdt-active-low-opto-isolated-arduino","title":"8-Channel Relay Module 5V — 10A SPDT, Active-Low, Opto-Isolated, Arduino Compatible","description":"\u003ch2\u003e8-Channel Relay Module — 5V, 10A SPDT, Active-Low, Opto-Isolated\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e8-channel 5V relay module\u003c\/strong\u003e provides eight independently controlled SPDT relays on a single PCB — the standard solution for Arduino and ESP32 home automation projects requiring control of multiple AC or DC loads simultaneously. Each relay is driven by an onboard transistor and \u003cstrong\u003eopto-isolator\u003c\/strong\u003e, requiring only \u003cstrong\u003e\u0026lt;5mA from each GPIO pin\u003c\/strong\u003e to switch a \u003cstrong\u003e10A load\u003c\/strong\u003e. All eight relays can be energized simultaneously, drawing ~600mA total from the 5V supply.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eJD-VCC jumper\u003c\/strong\u003e allows the module to operate in two modes: standard mode (jumper installed, single 5V supply) or fully opto-isolated mode (jumper removed, separate 5V supply for relay coils) for maximum protection against AC-side faults.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 independently controlled SPDT relays\u003c\/strong\u003e — IN1–IN8, each independently addressable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A SPDT contacts\u003c\/strong\u003e — switches up to 250VAC @ 10A or 15VDC @ 10A per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive-LOW control\u003c\/strong\u003e — logic LOW energizes relay; logic HIGH de-energizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpto-isolated inputs\u003c\/strong\u003e — complete electrical isolation between MCU and relay power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJD-VCC jumper\u003c\/strong\u003e — selectable single-supply or dual-supply (full isolation) mode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u0026lt;5mA GPIO drive\u003c\/strong\u003e — safe for all Arduino, ESP32, and Raspberry Pi GPIO pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed LED indicators\u003c\/strong\u003e — one per channel, illuminates when relay energized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in flyback diodes\u003c\/strong\u003e — protects driver transistors from relay coil back-EMF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 × M3 mounting holes\u003c\/strong\u003e — for secure enclosure mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~70mA per relay energized (~600mA all 8 on)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Logic\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActive-LOW (LOW = relay ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic HIGH threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;2.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic LOW threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGPIO Current Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5mA (opto-isolated driver onboard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Rating (AC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115VAC @ 10A \/ 250VAC @ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Rating (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15V DC @ 10A (recommended max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO + NC + COM) per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e138 × 56 × 20mm (5.4 × 2.2 × 0.79″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWiring Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eControl header (1×10):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e → Arduino\/MCU GND (must share ground)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN1–IN8\u003c\/strong\u003e → Arduino digital output pins (LOW = relay ON)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e → 5V supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation header (1×3):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJD-VCC\u003c\/strong\u003e → Relay coil power. \u003cem\u003eJumper to VCC\u003c\/em\u003e for single-supply mode (default). \u003cem\u003eRemove jumper, connect separate 5V\u003c\/em\u003e for full opto-isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e → Logic supply (same as control header VCC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e → Ground for separate relay supply (if used)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLoad screw terminals (per channel):\u003c\/strong\u003e NO \/ COM \/ NC — same as 1-channel module.\u003c\/p\u003e\n\n\u003ch3\u003eOpto-Isolation Modes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard mode (jumper installed):\u003c\/strong\u003e JD-VCC tied to VCC — single 5V supply powers both logic and relay coils. Opto-isolators still present but not providing full isolation. Easiest setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull isolation mode (jumper removed):\u003c\/strong\u003e Separate 5V supply connected to JD-VCC powers relay coils independently. MCU logic circuit is fully isolated from relay power — maximum protection against AC-side faults, lightning strikes, or load failures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDC Voltage Limit\u003c\/h3\u003e\n\u003cp\u003eRelay contacts are rated 30VDC on the relay body, but \u003cstrong\u003eDC arc suppression is poor above ~15V\u003c\/strong\u003e. Limit DC switching to 15V or below. AC performance is excellent — tested at 1500W \/ 12.5A heater load without issues.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino \/ ESP32 home automation — control 8 lights, fans, or appliances from a single board\u003c\/li\u003e\n\u003cli\u003eSmart home relay controller — MQTT \/ Home Assistant \/ Node-RED integration\u003c\/li\u003e\n\u003cli\u003eIrrigation system — control 8 solenoid valves for zone-based watering\u003c\/li\u003e\n\u003cli\u003eIndustrial PLC output expansion — 8-channel relay output card\u003c\/li\u003e\n\u003cli\u003eGreenhouse automation — lights, heaters, fans, misters, CO₂ valves\u003c\/li\u003e\n\u003cli\u003e3D printer enclosure control — lights, exhaust fan, filament dryer\u003c\/li\u003e\n\u003cli\u003eEscape room and prop control — 8 independently triggered effects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 8-Channel Relay Module 5V (10A SPDT, active-low, opto-isolated, with screw terminals)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681476042987,"sku":"","price":22.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Relay-Module-8-x-5V-1.jpg?v=1723005869"},{"product_id":"solid-state-relay-module-5v-1-channel-ssr-100-240vac-2a-zero-cross-arduino","title":"Solid State Relay Module 5V — 1-Channel SSR, 100–240VAC \/ 2A, Zero-Cross, Active-Low, Arduino","description":"\u003ch2\u003eSolid State Relay Module — 5V, 1-Channel SSR, 100–240VAC \/ 2A, Zero-Cross Switching\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e1-channel solid state relay (SSR) module\u003c\/strong\u003e switches \u003cstrong\u003e100–240VAC at up to 2A\u003c\/strong\u003e from a \u003cstrong\u003e5V active-LOW logic signal\u003c\/strong\u003e — no moving parts, no audible click, no contact wear. Built on the Omron G3MB-202P SSR with built-in \u003cstrong\u003ephototriac coupler isolation\u003c\/strong\u003e and \u003cstrong\u003ezero-cross switching\u003c\/strong\u003e, this module is the clean, silent alternative to electromechanical relay modules for controlling AC loads up to ~220W. An onboard \u003cstrong\u003e2A fuse\u003c\/strong\u003e provides over-current protection on the AC output side.\u003c\/p\u003e\n\n\u003cp\u003eThe module is \u003cstrong\u003eactive-LOW\u003c\/strong\u003e: driving CH1 LOW energizes the SSR (red LED ON, AC output connected). Logic HIGH or no connection de-energizes the SSR. The input draws \u0026lt;1mA — directly drivable from any Arduino, ESP32, or Raspberry Pi GPIO pin.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero-cross switching\u003c\/strong\u003e — switches at AC waveform zero point, minimizing electrical noise and inrush current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhototriac coupler isolation\u003c\/strong\u003e — built-in opto-isolation between MCU logic and AC load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive-LOW control\u003c\/strong\u003e — LOW = SSR ON; HIGH = SSR OFF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u0026lt;1mA GPIO drive\u003c\/strong\u003e — safe for all MCU GPIO pins, no driver transistor needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2A onboard fuse\u003c\/strong\u003e — AC-side over-current protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed LED indicator\u003c\/strong\u003e — illuminates when SSR is energized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — diode on DC power input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew terminal connections\u003c\/strong\u003e — for both DC control and AC load wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4–6V DC (5V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~10mA when SSR energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Logic\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActive-LOW (LOW = SSR ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic HIGH threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;3.1V (when Vcc = 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic LOW threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGPIO Current Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75–264VAC (recommended: 100–240VAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1–2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZero-cross\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery half-cycle (~8.3ms @ 60Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOnboard Fuse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2A (AC side, soldered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSSR Component\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOmron G3MB-202P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e3.3V Compatibility Note\u003c\/h3\u003e\n\u003cp\u003eThis module is \u003cstrong\u003e5V logic optimized\u003c\/strong\u003e. The logic HIGH threshold to turn the SSR OFF is ~3.1V when Vcc = 5V. A 3.3V MCU GPIO may or may not reach this threshold reliably — adding a pull-up resistor on the CH1 line to 3.3V improves reliability. If Vcc is reduced below 5V, the HIGH threshold scales proportionally.\u003c\/p\u003e\n\n\u003ch3\u003eWiring Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDC control screw terminal (3-pin):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC+\u003c\/strong\u003e → 4–6V DC supply (5V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC−\u003c\/strong\u003e → GND (shared with MCU ground)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH1\u003c\/strong\u003e → MCU GPIO (LOW = SSR ON)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAC load screw terminal (2-pin, non-polarized):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne terminal → AC mains hot lead (incoming)\u003c\/li\u003e\n\u003cli\u003eOther terminal → Load hot lead (outgoing to load)\u003c\/li\u003e\n\u003cli\u003eAC neutral connects directly to load (not through relay)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAC safety:\u003c\/strong\u003e When switching mains voltage, ensure all AC connections are properly insulated and enclosed. Mount in a suitable electrical enclosure with terminal strips for safe AC wiring.\u003c\/p\u003e\n\n\u003ch3\u003eSSR vs Electromechanical Relay Module\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSSR (this):\u003c\/strong\u003e Silent, no moving parts, unlimited switching life, zero-cross switching reduces EMI — best for frequent switching, noise-sensitive environments, and long-life applications up to 2A AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectromechanical relay module:\u003c\/strong\u003e Audible click, mechanical wear, can switch DC and higher AC currents (10A+) — best for infrequent switching and higher current loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino \/ ESP32 AC mains switching (lamps, fans, heaters up to ~220W @ 110V)\u003c\/li\u003e\n\u003cli\u003eTerrarium automation — heat lamp, mister, fan, UV light control\u003c\/li\u003e\n\u003cli\u003eAquarium heater and pump control\u003c\/li\u003e\n\u003cli\u003eChristmas and decorative lighting control\u003c\/li\u003e\n\u003cli\u003eHVAC zone valve and damper control\u003c\/li\u003e\n\u003cli\u003e3D printer heated bed control (12V DC bed — use electromechanical relay instead)\u003c\/li\u003e\n\u003cli\u003eEscape room and prop automation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Solid State Relay Module 5V (1-channel, 100–240VAC \/ 2A, zero-cross, active-low)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681477746923,"sku":"","price":9.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Solid-State-Relay-Module-1-x-5V_a3f8d2f1-1635-44a6-bb96-b449b0a8e8ca.jpg?v=1723005861"},{"product_id":"solid-state-ac-relay-module-5v-x-2","title":"Solid State AC Relay Module 5V x 2","description":"\u003cp\u003e\u003cspan\u003e5V logic compatible, controls 100-240VAC@2A\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe solid state relay module has 2 independent 5V logic compatible relays that can control up to 120\/240VAC@2A\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSolid State Relay Module 5V x 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF SOLID STATE RELAY MODULE 5V X 2:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2 independently controlled SSR relays\u003c\/li\u003e\n\u003cli\u003ePhototriac coupler input isolation\u003c\/li\u003e\n\u003cli\u003eSwitch 100-240VAC @ 2A per relay\u003c\/li\u003e\n\u003cli\u003eLED indicators when relays are energized\u003c\/li\u003e\n\u003cli\u003eBuilt-in snubber circuit\u003c\/li\u003e\n\u003cli\u003eZero cross control\u003c\/li\u003e\n\u003cli\u003eActive LOW control inputs\u003c\/li\u003e\n\u003cli\u003e5V logic compatible, marginally 3.3V compatible.  See notes below\u003c\/li\u003e\n\u003cli\u003e5V operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolid State Relay (SSR) modules are handy for controlling smaller AC loads.\u003c\/p\u003e\n\u003cp\u003eThis module switches up to 2 channels of AC at up to 2A per channel.  The solid state relays can turn each AC channel ON or OFF, but it cannot be used for dimming.\u003c\/p\u003e\n\u003cp\u003eCompared to a standard electro-mechanical relay, the solid state relay switches quicker and does not have the long-term mechanical reliability concerns of a standard relay as long as the maximum current limits are observed.  The main downside is that it cannot be used to control DC power and max current is limited to 2A.\u003c\/p\u003e\n\u003ch3\u003eModule Control\u003c\/h3\u003e\n\u003cp\u003eThese modules are 5V logic compatible and marginally 3.3V logic compatible.  The reason it is marginally 3.3V compatible is that to turn the relay output off with a logic HIGH, the input must be driven to a minimum of about 3.1V if Vcc is 5V.  A 3.3V MCU output may or may not get high enough, though pull-ups on the MCU output will help.  If Vcc is less than 5V, then the logic HIGH voltage required to fully turn the relay off will also be less.\u003c\/p\u003e\n\u003cp\u003eThe inputs have a relay driver transistor which means the device needs \u0026lt; 1 mA on the logic control pin to drive it.  If you have a microcontroller like an Arduino, you can drive the relays using any of the digital output pins.  The relays can also be controlled with mechanical switches or appropriate sensors.\u003c\/p\u003e\n\u003cp\u003eThe relays are activated with a logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eLOW\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003esignal.  There is a red LED that is lit when the control pin for that relay is driven low to activate the relay.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHIGH\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003edeactivates the relay and the LED will go off.\u003c\/p\u003e\n\u003ch3\u003eOpto-Isolation\u003c\/h3\u003e\n\u003cp\u003eThe relays have built-in phototriac couplers on their logic inputs.\u003c\/p\u003e\n\u003cp\u003eThese phototriac couplers provide electrical isolation between the logic control input and the relay power as an added layer of protection in case of a major failure on the AC load of the relay.\u003c\/p\u003e\n\u003ch3\u003eModule Power\u003c\/h3\u003e\n\u003cp\u003eThe module requires 4-6V power and ground to operate.  The ground must be common with the MCU for the control inputs to work.\u003c\/p\u003e\n\u003cp\u003eThe input has a reverse polarity protection diode in case the power connections are accidentally reversed.\u003c\/p\u003e\n\u003cp\u003eWhen a relay is energized, the relay draws about 10mA from the Vcc pin.  With both relays energized, the total draw is about 20mA.\u003c\/p\u003e\n\u003ch3\u003eRelay Operation\u003c\/h3\u003e\n\u003cp\u003eThe output of the relay is rated to switch AC power over a maximum range of 75VAC to 264VAC at 2A and suggested range of 100V to 240VAC.\u003c\/p\u003e\n\u003cp\u003eThe output is SPST type and is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Open).  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eLOW\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eenergizes the relay, so the two output terminals are shorted and power passes through the relay.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHIGH\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e(or no connection) de-energizes the relay and the output terminals are open.  As noted above, the logic high level needs to reach about 3.1V to fully shut the relay off when Vcc is 5V.\u003c\/p\u003e\n\u003cp\u003eThe relay operates at the zero cross point of the AC waveform so can switch every half cycle or 8.3mS.\u003c\/p\u003e\n\u003cp\u003eEach relay has a 2A soldered in fuse on the AC side for over-current protection.\u003c\/p\u003e\n\u003cdiv id=\"attachment_10652\" class=\"wp-caption aligncenter\"\u003e\n\u003cimg decoding=\"async\" aria-describedby=\"caption-attachment-10652\" class=\"wp-image-10652 size-full entered lazyloaded\" src=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic.jpg\" alt=\"SSR Active Low Schematic\" width=\"629\" height=\"203\" data-lazy-srcset=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic.jpg 629w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic-300x97.jpg 300w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic-280x90.jpg 280w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic-400x129.jpg 400w\" data-lazy-sizes=\"(max-width: 629px) 100vw, 629px\" data-lazy-src=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic.jpg\" data-ll-status=\"loaded\" sizes=\"(max-width: 629px) 100vw, 629px\" srcset=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic.jpg 629w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic-300x97.jpg 300w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic-280x90.jpg 280w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-Low-Schematic-400x129.jpg 400w\"\u003e\n\u003cp id=\"caption-attachment-10652\" class=\"wp-caption-text\"\u003eSSR Active Low Schematic\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 4 Screw Terminal Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDC+\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e= 4-6VDC (5V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDC-\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e= Ground from MCU or other control input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 1.  Logic HIGH level energizes relay 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 2.  Logic HIGH level energizes relay 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Contacts (2 screw terminal blocks)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-polarized\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= AC input side of hot lead (typically black wire) connects to one side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-polarized\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Load side of hot lead connects to the other side.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice relatively inexpensive modules that will work for a number of applications where lower power AC devices of up to about 220W @ 110V need to be controlled.  For a terrarium setup for instance, the module could automatically control the lights, heat lamp, heat rock, mister, circulating fan and similar devices.  Control of Christmas lighting is another popular type of application.\u003c\/p\u003e\n\u003cp\u003eWhen switching AC power, proper safety should be observed to ensure the wiring is secure and not easily contacted to avoid an electrical shock.  These are often built into a electrical box with a terminal strip to make the AC electrical connections in a safe and secure manner.\u003c\/p\u003e\n\u003cp\u003eNote that unlike mechanical relays, SSR relays cannot be operated in parallel to increase their current handling capability. This is because the relays will not turn on at exactly the same time and the first one to turn on will carry the full load until it fails or the fuse blows and then the second one will turn on and also subsequently fail.\u003c\/p\u003e\n\u003cp\u003eFor redundancy purposes, it is possible to operate 2 is parallel if the load is within the 2A limit of a single relay. If the relay carrying the load fails, the other relay will automatically switch on.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample inspected and tested per incoming shipment.\u003c\/li\u003e\n\u003cli\u003eRepackaged in high quality resealable ESD bag for safe storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eFURTHER READING:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.ia.omron.com\/support\/guide\/18\/introduction.html\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003e\u003cstrong\u003eOmron SSR Technical Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/makezine.com\/projects\/arduino-relays-high-voltage\/\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003e\u003cstrong\u003eExample application – Great Houdini Escape Room\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eNone\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"989\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eLogic Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e+5 Logic Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic High\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026gt; 3.1V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eUnknown State\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 2.0V –  3.1V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic Low\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 2.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eDrive Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e \u003cstrong\u003eVcc\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e4-6VDC (5V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMaximum Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10mA per relay, 40mA with all relays energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eRelay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMaximum\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e75-264VAC @ (0.1 – 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eRecommended\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e100-240VAC @ (0.1 – 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMax Inrush Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 30A (8.3mS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eRelay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eOmron\u003c\/td\u003e\n\u003ctd width=\"229\"\u003eG3MB-202P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e55 x 33 x 25mm (2.16 x 1.3 x 1″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681479811307,"sku":"","price":17.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Solid-State-Relay-Module-2-x-5V.jpg?v=1723005843"},{"product_id":"solid-state-ac-relay-module-5v-x-4","title":"Solid State AC Relay Module 5V x 4","description":"\u003cp\u003e\u003cspan\u003e3.3 – 5V logic compatible, controls 100-240VAC@2A\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe solid state relay module has 4 independent 3.3V and 5V logic compatible relays that can control up to 120\/240VAC@2A\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSolid State Relay Module 5V x 4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF SOLID STATE RELAY MODULE 5V X 4:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4 independently controlled SSR relays\u003c\/li\u003e\n\u003cli\u003ePhototriac coupler input isolation\u003c\/li\u003e\n\u003cli\u003eSwitch 100-240VAC @ 2A per relay\u003c\/li\u003e\n\u003cli\u003eLED indicators when relays are energized\u003c\/li\u003e\n\u003cli\u003eBuilt-in snubber circuit\u003c\/li\u003e\n\u003cli\u003eZero cross control\u003c\/li\u003e\n\u003cli\u003eActive HIGH control inputs\u003c\/li\u003e\n\u003cli\u003e3.3 and 5V logic compatible\u003c\/li\u003e\n\u003cli\u003e5V operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolid State Relay (SSR) modules are handy for controlling smaller AC loads.\u003c\/p\u003e\n\u003cp\u003eThis module switches up to 4 channels of AC at up to 2A per channel.  The solid state relays can turn each AC channel ON or OFF, but it cannot be used for dimming.\u003c\/p\u003e\n\u003cp\u003eCompared to a standard electro-mechanical relay, the solid state relay switches quicker and does not have the long-term mechanical reliability concerns of a standard relay as long as the maximum current limits are observed.  The main downside is that it cannot be used to control DC power and max current is limited to 2A.\u003c\/p\u003e\n\u003ch3\u003eModule Control\u003c\/h3\u003e\n\u003cp\u003eThese relays are fully 3.3 and 5V logic compatible.  The inputs have a relay driver transistor which means the device needs \u0026lt; 1 mA on the logic control pin to drive it.  If you have a microcontroller like an Arduino, you can drive the relays using any of the digital output pins.  The relays can also be controlled with mechanical switches or appropriate sensors.\u003c\/p\u003e\n\u003cp\u003eThe relays are activated with a logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHIGH\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003esignal.  There is a red LED that is lit when the control pin for that relay is driven high to activate the relay.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eLOW\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003edeactivates the relay and the LED will go off.\u003c\/p\u003e\n\u003ch3\u003eOpto-Isolation\u003c\/h3\u003e\n\u003cp\u003eThe relays have built-in phototriac couplers on their logic inputs.\u003c\/p\u003e\n\u003cp\u003eThese phototriac couplers provide electrical isolation between the logic control input and the relay power as an added layer of protection in case of a major failure on the AC load of the relay.\u003c\/p\u003e\n\u003ch3\u003eModule Power\u003c\/h3\u003e\n\u003cp\u003eThe module requires 4-6V power and ground to operate.  The ground must be common with the MCU for the control inputs to work.\u003c\/p\u003e\n\u003cp\u003eThe input has a reverse polarity protection diode in case the power connections are accidentally reversed.\u003c\/p\u003e\n\u003cp\u003eWhen a relay is energized, the relay draws about 10mA from the Vcc pin.  With all four relays energized, the total draw is about 40mA.\u003c\/p\u003e\n\u003ch3\u003eRelay Operation\u003c\/h3\u003e\n\u003cp\u003eThe output of the relay is rated to switch AC power over a maximum range of 75VAC to 264VAC at 2A and suggested range of 100V to 240VAC.\u003c\/p\u003e\n\u003cp\u003eThe output is SPST type and is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Open).  A logic\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHIGH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eenergizes the relay, so the two output terminals are shorted and power passes through the relay.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLOW\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(or no connection) de-energizes the relay and the output terminals are open.\u003c\/p\u003e\n\u003cp\u003eThe relay operates at the zero cross point of the AC waveform so can switch every half cycle or 8.3mS.\u003c\/p\u003e\n\u003cp\u003eEach relay has a 2A soldered in fuse on the AC side for over-current protection.\u003c\/p\u003e\n\u003cp\u003e\u003cimg decoding=\"async\" class=\"aligncenter size-full wp-image-10639 entered lazyloaded\" src=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg\" alt=\"SSR Active High Schematic\" width=\"628\" height=\"273\" data-lazy-srcset=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg 628w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-300x130.jpg 300w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-280x122.jpg 280w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-400x174.jpg 400w\" data-lazy-sizes=\"(max-width: 628px) 100vw, 628px\" data-lazy-src=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg\" data-ll-status=\"loaded\" sizes=\"(max-width: 628px) 100vw, 628px\" srcset=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg 628w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-300x130.jpg 300w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-280x122.jpg 280w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-400x174.jpg 400w\"\u003e\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003cp\u003eThe module has both a male header and screw terminal blocks that are in parallel, so either can be used for making MCU side connections.  Use which ever is more convenient for your application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 6 Header and Screw Terminal Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDC+\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e= 4-6VDC (5V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDC-\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e= Ground from MCU or other control input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 1.  Logic HIGH level energizes relay 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 2.  Logic HIGH level energizes relay 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 3.  Logic HIGH level energizes relay 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 4.  Logic HIGH level energizes relay 4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Contacts (2 screw terminal blocks)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-polarized\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= AC input side of hot lead (typically black wire) connects to one side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-polarized\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Load side of hot lead connects to the other side.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice relatively inexpensive modules that will work for a number of applications where lower power AC devices of up to about 220W @ 110V need to be controlled.  For a terrarium setup for instance, the module could automatically control the lights, heat lamp, heat rock, mister, circulating fan and similar devices.  Control of Christmas lighting is another popular type of application.\u003c\/p\u003e\n\u003cp\u003eWhen switching AC power, proper safety should be observed to ensure the wiring is secure and not easily contacted to avoid an electrical shock.  These are often built into a electrical box with a terminal strip to make the AC electrical connections in a safe and secure manner.\u003c\/p\u003e\n\u003cp\u003eNote that unlike mechanical relays, SSR relays cannot be operated in parallel to increase their current handling capability. This is because the relays will not turn on at exactly the same time and the first one to turn on will carry the full load until it fails or the fuse blows and then the second one will turn on and also subsequently fail.\u003c\/p\u003e\n\u003cp\u003eFor redundancy purposes, it is possible to operate 2 is parallel if the load is within the 2A limit of a single relay. If the relay carrying the load fails, the other relay will automatically switch on.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample inspected and tested per incoming shipment.\u003c\/li\u003e\n\u003cli\u003eRepackaged in high quality resealable ESD bag for safe storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eFURTHER READING:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.ia.omron.com\/support\/guide\/18\/introduction.html\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003e\u003cstrong\u003eOmron SSR Technical Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/makezine.com\/projects\/arduino-relays-high-voltage\/\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003e\u003cstrong\u003eExample application – Great Houdini Escape Room\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eNone\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"989\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eLogic Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e@ Vcc = 5V\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic High\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026gt; 2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eUnknown State\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 1.0V –  2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic Low\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 1.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eDrive Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e \u003cstrong\u003eVcc\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e4-6VDC (5V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMaximum Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10mA per relay, 40mA with all relays energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eRelay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMaximum\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e75-264VAC @ (0.1 – 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eRecommended\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e100-240VAC @ (0.1 – 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMax Inrush Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 30A (8.3mS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eRelay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eOmron\u003c\/td\u003e\n\u003ctd width=\"229\"\u003eG3MB-202P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e57 x 55 x 25mm (2.24 x 2.16 x 1″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681485971691,"sku":"","price":27.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Solid-State-Relay-Module-4-x-5V.jpg?v=1723005835"},{"product_id":"solid-state-ac-relay-module-5v-x-8","title":"Solid State AC Relay Module 5V x 8","description":"\u003cp\u003e\u003cspan\u003e3.3 – 5V logic compatible, controls 100-240VAC@2A\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThe solid state relay module has 8 independent 3.3V and 5V logic compatible relays that can control up to 120\/240VAC@2A\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSolid State Relay Module 5V x 8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES OF SOLID STATE RELAY MODULE 5V X 8:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 independently controlled SSR relays\u003c\/li\u003e\n\u003cli\u003ePhototriac coupler input isolation\u003c\/li\u003e\n\u003cli\u003eSwitch 100-240VAC @ 2A per relay\u003c\/li\u003e\n\u003cli\u003eLED indicators when relays are energized\u003c\/li\u003e\n\u003cli\u003eBuilt-in snubber circuit\u003c\/li\u003e\n\u003cli\u003eZero cross control\u003c\/li\u003e\n\u003cli\u003eActive HIGH control inputs\u003c\/li\u003e\n\u003cli\u003e3.3 and 5V logic compatible\u003c\/li\u003e\n\u003cli\u003e5V operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolid State Relay (SSR) modules are handy for controlling smaller AC loads.\u003c\/p\u003e\n\u003cp\u003eThis module switches up to 8 channels of AC at up to 2A per channel.  The solid state relays can turn each AC channel ON or OFF, but it cannot be used for dimming.\u003c\/p\u003e\n\u003cp\u003eCompared to a standard electro-mechanical relay, the solid state relay switches quicker and does not have the long-term mechanical reliability concerns of a standard relay as long as the maximum current limits are observed.  The main downside is that it cannot be used to control DC power and max current is limited to 2A.\u003c\/p\u003e\n\u003ch3\u003eModule Control\u003c\/h3\u003e\n\u003cp\u003eThese relays are fully 3.3 and 5V logic compatible.  The inputs have a relay driver transistor which means the device needs \u0026lt; 1 mA on the logic control pin to drive it.  If you have a microcontroller like an Arduino, you can drive the relays using any of the digital output pins.  The relays can also be controlled with mechanical switches or appropriate sensors.\u003c\/p\u003e\n\u003cp\u003eThe relays are activated with a logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHIGH\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003esignal.  There is a red LED that is lit when the control pin for that relay is driven high to activate the relay.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eLOW\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003edeactivates the relay and the LED will go off.\u003c\/p\u003e\n\u003ch3\u003eOpto-Isolation\u003c\/h3\u003e\n\u003cp\u003eThe relays have built-in phototriac couplers on their logic inputs.\u003c\/p\u003e\n\u003cp\u003eThese phototriac couplers provide electrical isolation between the logic control input and the relay power as an added layer of protection in case of a major failure on the AC load of the relay.\u003c\/p\u003e\n\u003ch3\u003eModule Power\u003c\/h3\u003e\n\u003cp\u003eThe module requires 4-6V power and ground to operate.  The ground must be common with the MCU for the control inputs to work.\u003c\/p\u003e\n\u003cp\u003eThe input has a reverse polarity protection diode in case the power connections are accidentally reversed.\u003c\/p\u003e\n\u003cp\u003eWhen a relay is energized, the relay draws about 10mA from the Vcc pin.  With all eight relays energized, the total draw is about 80mA.\u003c\/p\u003e\n\u003ch3\u003eRelay Operation\u003c\/h3\u003e\n\u003cp\u003eThe output of the relay is rated to switch AC power over a maximum range of 75VAC to 264VAC at 2A and suggested range of 100V to 240VAC.\u003c\/p\u003e\n\u003cp\u003eThe output is SPST type and is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Normally Open).  A logic\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHIGH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eenergizes the relay, so the two output terminals are shorted and power passes through the relay.  A logic\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLOW\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(or no connection) de-energizes the relay and the output terminals are open.\u003c\/p\u003e\n\u003cp\u003eThe relay operates at the zero cross point of the AC waveform so can switch every half cycle or 8.3mS.\u003c\/p\u003e\n\u003cp\u003eEach relay has a 2A soldered in fuse on the AC side for over-current protection.\u003c\/p\u003e\n\u003cp\u003e\u003cimg decoding=\"async\" class=\"aligncenter size-full wp-image-10639 entered lazyloaded\" src=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg\" alt=\"SSR Active High Schematic\" width=\"628\" height=\"273\" data-lazy-srcset=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg 628w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-300x130.jpg 300w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-280x122.jpg 280w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-400x174.jpg 400w\" data-lazy-sizes=\"(max-width: 628px) 100vw, 628px\" data-lazy-src=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg\" data-ll-status=\"loaded\" sizes=\"(max-width: 628px) 100vw, 628px\" srcset=\"https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic.jpg 628w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-300x130.jpg 300w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-280x122.jpg 280w, https:\/\/protosupplies.com\/wp-content\/uploads\/2021\/02\/SSR-Active-High-Schematic-400x174.jpg 400w\"\u003e\u003c\/p\u003e\n\u003ch3\u003eModule Connections\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1 x 8 Screw Terminal Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN1\/CH1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 1.  Logic HIGH level energizes relay 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN2\/CH2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 2.  Logic HIGH level energizes relay 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN3\/CH3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 3.  Logic HIGH level energizes relay 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN4\/CH4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 4.  Logic HIGH level energizes relay 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN5\/CH5\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 5.  Logic HIGH level energizes relay 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN6\/CH6\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 6.  Logic HIGH level energizes relay 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN7\/CH7\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 7.  Logic HIGH level energizes relay 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN8\/CH8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Relay control input 8.  Logic HIGH level energizes relay 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Ground from MCU or other control input.  Tied to Vcc ground on module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Contacts (2 screw terminal blocks)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-polarized\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= AC input side of hot lead (typically black wire) connects to one side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-polarized\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Load side of hot lead connects to the other side.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e1×2 Power Screw Terminal Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 4-6VDC (5V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= Vcc power Ground\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eOUR EVALUATION RESULTS:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThese are nice relatively inexpensive modules that will work for a number of applications where lower power AC devices of up to about 220W @ 110V need to be controlled.  For a terrarium setup for instance, the module could automatically control the lights, heat lamp, heat rock, mister, circulating fan and similar devices.  Control of Christmas lighting is another popular type of application.\u003c\/p\u003e\n\u003cp\u003eWhen switching AC power, proper safety should be observed to ensure the wiring is secure and not easily contacted to avoid an electrical shock.  These are often built into a electrical box with a terminal strip to make the AC electrical connections in a safe and secure manner.\u003c\/p\u003e\n\u003cp\u003eNote that unlike mechanical relays, SSR relays cannot be operated in parallel to increase their current handling capability. This is because the relays will not turn on at exactly the same time and the first one to turn on will carry the full load until it fails or the fuse blows and then the second one will turn on and also subsequently fail.\u003c\/p\u003e\n\u003cp\u003eFor redundancy purposes, it is possible to operate 2 is parallel if the load is within the 2A limit of a single relay. If the relay carrying the load fails, the other relay will automatically switch on.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBEFORE THEY ARE SHIPPED, THESE MODULES ARE:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample inspected and tested per incoming shipment.\u003c\/li\u003e\n\u003cli\u003eRepackaged in high quality resealable ESD bag for safe storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eFURTHER READING:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.ia.omron.com\/support\/guide\/18\/introduction.html\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003e\u003cstrong\u003eOmron SSR Technical Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/makezine.com\/projects\/arduino-relays-high-voltage\/\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003e\u003cstrong\u003eExample application – Great Houdini Escape Room\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNotes: \u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ci\u003eNone\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable class=\"table table-hover\" width=\"989\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eLogic Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003e@ Vcc = %V\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic High\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026gt; 2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eUnknown State\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 1.0V –  2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eLogic Low\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 1.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eDrive Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e\u0026lt; 1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e \u003cstrong\u003eVcc\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e4-6VDC (5V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMaximum Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e10mA per relay, 80mA with all relays energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eRelay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMaximum\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e75-264VAC @ (0.1 – 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eRecommended\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e100-240VAC @ (0.1 – 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eMax Inrush Current\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e 30A (8.3mS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eRelay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eOmron\u003c\/td\u003e\n\u003ctd width=\"229\"\u003eG3MB-202P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"145\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"264\"\u003eL x W x H\u003c\/td\u003e\n\u003ctd width=\"229\"\u003e128 x 61 x 25mm (5 x 2.4 x 1″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45681490493675,"sku":"","price":49.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Solid-State-Relay-Module-8-x-5V.jpg?v=1723005826"},{"product_id":"8-channel-5v-12v-24v-relay-module-with-optocoupler-for-arduino-raspberry-pi-high-low-level-trigger","title":"8-Channel 5V\/12V\/24V Relay Module with Optocoupler for Arduino \u0026 Raspberry Pi High\/Low Level Trigger","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e--\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e--\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSMD\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eQuantity\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5V 12V 24V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRelay\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"relatedProduct\" id=\"1005000012654807\" title=\"\" type=\"relation\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e  \n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003eRelay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color:rgb(211, 49, 21);font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e\u003cbr\u003e \u003cbr style='box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; color: rgb(34, 34, 34); font-family: \"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e \u003cstrong style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(255, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 16px;\"\u003eWarm Tips:\u003c\/strong\u003e\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(255, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 16px;\"\u003e \u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(255, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 16px; float: none; display: inline !important;\"\u003eOur store support wholesale, the more quantity the more discount. \u003c\/span\u003e\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(255, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 16px;\"\u003e \u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(255, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 16px; float: none; display: inline !important;\"\u003eIf you want to bulk order, please feel free to contact seller for wholesale price, looking forward to receive your inquiry, thanks! ^_^\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e Features:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 1. Dual trigger design, use a dedicated two-way driver IC\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 2. Strong resist interference, use diode continued current to protect it.\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 3. The relay contact part adopts double cloth line for large current, safe and reliable.\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 4. The input and output are 5.08mm wiring terminals, wiring is more \u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003econvenient, suitable for PLC control.\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 5. Input terminals can be arbitrarily set high and low level, the control mode is more flexible.\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 6. Equipped with fixing screw hole, easy to install.\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 7. Each way module can be set high or low triggered by jumper.\u003c\/span\u003e\u003cspan style=\"color:rgb(211, 49, 21);font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e Mounting bolts holes: 4\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e Holes diameter: 3mm\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e Voltage: 5V 12V 24V\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e Maximum load: AC 250V\/10A, DC 30V\/10A\u003c\/span\u003e\u003cspan style=\"color:rgb(211, 49, 21);font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Interface:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e VCC: Power end\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e GND: Ground strap\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e CTR1-CTR8: Signal input trigger\u003c\/span\u003e\u003cspan style=\"color:rgb(211, 49, 21);font-size:18px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Outputs:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e 24 line interface, the interface can be directly connected to all leads, user- friendly\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e NO1-NO8: normally open relay interfaces, relay before the vacant after the pull shorted with COM\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e COM1-COM8: Relay Common Interface\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003e NC1-NC8: Normally closed relay interface relay shorted with COM ago after the pull- vacant\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e   \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img39\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf39a832fffa448e3bb2607fc3d78ca94F.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img40\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd22b5038eb2d4791815c611a919c8780J.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img41\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sc640fad089fe4e64bf7c0d381c7efa43L.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img42\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S8abb6b3833d04927b631ded8a1bcd1f97.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img43\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbe1f484a28c147cca7a302737cc1956dI.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img44\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S636c374cd6f34be5aad03d68fada95e2V.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img45\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sa8208ba9b6ef4831b6f406c203ceb9869.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003cimg cke-id=\"img46\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S61b521b6975a43dca08afaf82647c194n.jpg\"\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"12V","offer_id":46981887918315,"sku":"14:202997806#12V","price":35.4,"currency_code":"USD","in_stock":true},{"title":"24V","offer_id":46981887951083,"sku":"14:200000195#24V","price":35.4,"currency_code":"USD","in_stock":true},{"title":"5V","offer_id":46981887983851,"sku":"14:350852#5V","price":35.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/8-channel-relay-module-optocoupler-arduino-raspberrypi.webp?v=1761116203"},{"product_id":"1-channel-5v-12v-relay-module-low-level-trigger-board-with-optocoupler-for-arduino-pic-avr-dsp-arm","title":"1-Channel 5V\/12V Relay Module Low Level Trigger Board with Optocoupler for Arduino PIC AVR DSP ARM","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRelay Module 1 Channel\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5V 12V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRelay\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"relatedProduct\" id=\"1005000012654807\" title=\"\" type=\"relation\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e5V 12V Relay Module 1 Channel Low Level Trigger Board Shield with Optocoupler Relay Output for PIC AVR DSP ARM MCU Arduino\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e \u003cstrong style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 20px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word;\"\u003e\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e Product description:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e \u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; color: rgb(0, 0, 0); font-family: arial;\"\u003e1. The module complies with international safety standards, control area load area isolation groove;\u003c\/span\u003e\u003c\/span\u003e\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e \u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px; color: rgb(0, 0, 0); font-family: arial;\"\u003e2.\u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px; color: rgb(0, 0, 0); font-family: arial;\"\u003e Genuine relay Songle;\u003c\/span\u003e\u003cspan style='box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px; color: rgb(51, 51, 51); font-family: sans-serif, Arial, Verdana, \"Trebuchet MS\";'\u003e \u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e3. With the power and relay action instructions, pull bright disconnect does not shine;\u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e4. When a signal in the signal input terminal, the common terminal and the normally start conduction;\u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e5. Microcontroller development board can be used as a module that can be used as a home appliance control;\u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e6. The control of the DC or AC signal, can control 220V AC load;\u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e7. There is a normally open and a normally closed contact;\u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e8. Blue KF301 terminals to the line of control is more convenient.\u003cbr\u003e \u003cbr\u003e \u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003ePower supply voltage: 5V 12V\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e Trigger: High\u003cspan\u003e \u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003elevel trigger \/ \u003c\/span\u003eLow level trigger\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e Static voltage: 0ma\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e Load voltage: AC 250V\/10A; DC 30V\/10A\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e Maximum working current: 3.8mA\u003cbr style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e Module life: 10 million times\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e  \u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003eDescription of the high and low trigger, friends do not understand Take a look at:\u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e- High level trigger is a trigger voltage between the signal input and ground can be understood as a way of the signal input terminal and VCC cathode short trigger;\u003c\/span\u003e\u003c\/p\u003e \n\u003cp style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; line-height: 21px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-family: arial; font-size: 13px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 18px;\"\u003e- Low trigger means is the voltage between the signal input terminal and the ground for the OV trigger mode can be understood as a way of the signal input terminal and GND negative short trigger\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbc99a108652a4a0e895693f4c33cbcf6x.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S1d299e52c6434cfe86f19da9caf1d6a4E.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S04301cb6bdff4aa8b774953571bd5c70k.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Se099f291d8d04a7abade2f9bd521bf37W.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S28aec5d57b494215ba7ba0114eff9ee72.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sb14bfaffa7db426abf45a84a60e9be324.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e \n\u003cp\u003e\u003cspan style=\"font-size:20px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"5V","offer_id":46981888213227,"sku":"14:350852#5V","price":3.36,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":46981888245995,"sku":"14:202997806#12V","price":3.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/1-channel-relay-module-optocoupler-arduino.webp?v=1761116154"},{"product_id":"2-channel-5v-12v-relay-module-low-level-trigger-board-with-optocoupler-for-arduino-pic-avr-dsp-arm","title":"2-Channel 5V\/12V Relay Module Low Level Trigger Board with Optocoupler for Arduino PIC AVR DSP ARM","description":"\u003ch2\u003e2-Channel Relay Module — 5V \/ 12V, Optocoupler Isolated, Low-Level Trigger\u003c\/h2\u003e\n\n\u003cp\u003eA reliable dual-channel relay breakout module for switching AC and DC loads from microcontroller GPIO pins. Optocoupler isolation between the control circuit and relay coil protects your Arduino, ESP32, or Raspberry Pi from voltage spikes and inductive kickback — a critical safety feature when switching mains voltage loads. Each channel provides both Normally Open (NO) and Normally Closed (NC) contacts, rated for 10A at 250VAC or 30V DC.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in 5V and 12V coil voltage variants to match your system power supply.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 2 independent relay channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Voltage:\u003c\/strong\u003e 5V DC or 12V DC (select variant)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrigger Mode:\u003c\/strong\u003e Low-level trigger (active LOW) \/ High-level trigger (active HIGH) — jumper selectable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Optocoupler (control circuit fully isolated from relay\/load circuit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay:\u003c\/strong\u003e Songle SRD series (genuine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Rating:\u003c\/strong\u003e 10A \/ 250VAC; 10A \/ 30VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e SPDT (NO + NC + COM per channel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Current:\u003c\/strong\u003e 26.8mA per channel (coil)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Life:\u003c\/strong\u003e ≥10,000,000 mechanical operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicators:\u003c\/strong\u003e Power LED + relay status LED per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e KF301 screw terminals for load wiring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Interface:\u003c\/strong\u003e 2.54mm pin header (VCC, GND, IN1, IN2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Groove:\u003c\/strong\u003e Physical separation between control and load areas (international safety standard)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLow-Level vs. High-Level Trigger\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-level trigger (default):\u003c\/strong\u003e Relay activates when IN pin is pulled LOW (0V \/ GND). Most common for Arduino — write \u003ccode\u003edigitalWrite(pin, LOW)\u003c\/code\u003e to activate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-level trigger:\u003c\/strong\u003e Relay activates when IN pin is driven HIGH (VCC). Use when your MCU output is active-high or when using NPN transistor drivers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWiring (Arduino Example)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e → 5V (or 12V for 12V variant)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e → GND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN1\u003c\/strong\u003e → Arduino digital pin (e.g. D7)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN2\u003c\/strong\u003e → Arduino digital pin (e.g. D8)\u003c\/li\u003e\n\u003cli\u003eLoad wires connect to COM, NO (or NC) screw terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino\/ESP32 home automation (lights, fans, appliances)\u003c\/li\u003e\n\u003cli\u003eAC mains load switching (up to 250VAC 10A)\u003c\/li\u003e\n\u003cli\u003eDC motor on\/off control\u003c\/li\u003e\n\u003cli\u003eSolenoid valve control\u003c\/li\u003e\n\u003cli\u003eSmart home relay switching via IoT\u003c\/li\u003e\n\u003cli\u003eIndustrial PLC output expansion\u003c\/li\u003e\n\u003cli\u003eAutomatic irrigation and greenhouse control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 2-channel relay module (5V or 12V coil, as selected)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"12V","offer_id":46981888311531,"sku":"14:202997806#12V","price":5.92,"currency_code":"USD","in_stock":true},{"title":"5V","offer_id":46981888344299,"sku":"14:350852#5V","price":5.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/2-channel-relay-module-optocoupler-arduino.webp?v=1761116107"},{"product_id":"xh-m131-light-control-photoresistor-relay-module-5v-12v-24v-automatic-brightness-detection-switch-10a","title":"XH-M131 Light Control Photoresistor Relay Module 5V\/12V\/24V Automatic Brightness Detection Switch 10A","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eXH-M131\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-20+50\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5V \/ 12V \/ 24V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRelay\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"relatedProduct\" id=\"1005000012654807\" title=\"\" type=\"relation\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size:20px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cstrong\u003eXH-M131 DC 5V 12V 24V Light Control Switch Photoresistor Relay Module Detection Sensor \u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cstrong\u003e10A \u003c\/strong\u003e\u003c\/span\u003eBrightness Automatic Control Module\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan style=\"font-size:16px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cstrong\u003eThis module can be used for light detection and brightness detection. It has a power indicator (red) and a relay pull in indicator (blue), and is equipped with four M3 screw mounting holes, which greatly facilitates installation. The board can adjust the photosensitivity through a potentiometer. It has a relay, which can be used as a variety of brightness detection control switches, such as street lamps, which can be automatically turned on at night, turned off at day, and other equipment that needs automation.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cbr\u003e \u003cbr\u003e Input: DC 5V \/ 12V\u003cbr\u003e Load capacity: 10A \/ AC 250V or DC up to 30V\u003cbr\u003e RED LED ON: Indicate the Power ON\u003cbr\u003e BLUE LED ON: Relay is working\u003cbr\u003e Module output terminal has three ports\u003cbr\u003e Normally open ( NO )\u003cbr\u003e Common terminal ( COM )\u003cbr\u003e Normally closed ( NC )\u003cbr\u003e Size: 53*31*19mm\u003cbr\u003e Light threshold can be adjusted by potentiometer to set the relay start\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003eParameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e1. The module adopts 12V power supply, with anti reverse connection function, and the reverse connection power will not damage the module;\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e2. Large load capacity of normally open interface: AC 0V-125V\/20A, DC 0V-14V\/20A; The output end of the module has three ports: common end (COM), normally open (CK) and normally closed (CB). The three ports are equivalent to a dual control switch. When the relay coil is powered, the common end is connected to the normally open end. When there is no power, the common end is connected to the normally closed end. The COM end is generally connected to the negative power supply through the load, and the normally open end is connected to the positive power supply.\u003cbr\u003e 3. The sensitivity can be adjusted through the potentiometer, and the threshold value of the starting relay can be set by adjusting the potentiometer. When the light is darker than the threshold value, the module relay is pulled in, and when the light is brighter than the threshold value, the relay is disconnected;\u003c\/span\u003e\u003c\/span\u003e\n \u003cbr\u003e  \n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003eInstructions:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e1. The photoresist module is most sensitive to the brightness of the ambient light, and is generally used to detect the brightness change of the ambient light.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e2. When the ambient light of the module is darker than the threshold value, the relay is pulled in, and the common end is connected with the normally closed end (disconnected from the normally closed end). When the external ambient light is brighter than the set threshold value, the relay is disconnected, and the common end is disconnected from the normally closed end (disconnected from the normally closed end)\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e3. Common terminal, normally open, normally closed, the three ports are equivalent to a double control switch. When the relay coil is energized, the common terminal is connected with the normally open terminal, and when there is no power, the common terminal is connected with the normally closed terminal.\u003c\/span\u003e\u003c\/span\u003e\n \u003cbr\u003e  \n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003eDescription of Potentiometer Indicator:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003eRed light: module working voltage,\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003eBlue light: relay working indicator\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003ePotentiometer: adjust detection brightness value\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003eInstallation wiring (take the control of street lamps as an example)\u003c\/span\u003e\u003c\/span\u003e\n \u003cbr\u003e  \n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003eMatters Needs Attention:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e \n\u003cdiv\u003e\n \u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e1. If you need to work at night and do not work during the day, please connect the common terminal and the normally open terminal, such as street lamp control. Otherwise, connect the common terminal and the normally closed terminal. (Please select port wiring according to actual needs)\u003cbr\u003e 2. One contact in the middle of the output terminal is the normally closed terminal below the common terminal, and the upper one is the normally open terminal.\u003cbr\u003e \u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S6bd3d53f8dee4714b8ef0f7464e8a6bb2.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S92d499ee82694241b6afb3245a4dc14cB.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0ad4e102582e48899ec56e67e5462289s.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S34bee79c06f4441d8ea934de06360d83V.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S828fceff070f4cb995c526f8567735ad6.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S07783cec394543a2a56fd16057d56dc07.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S5d20a68949d1462a8115335f6d3f77e19.jpg\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"5V","offer_id":46981893914859,"sku":"14:350852#5V","price":5.72,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":46981893947627,"sku":"14:350850#12V","price":5.72,"currency_code":"USD","in_stock":true},{"title":"24V","offer_id":46981893980395,"sku":"14:200000195#24V","price":5.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/xh-m131-light-control-photoresistor-relay-module.webp?v=1761113086"},{"product_id":"4-channel-relay-module-5v-12v-24v-optocoupler-arduino-raspberry-pi","title":"4-Channel Relay Module 5V\/12V\/24V — Optocoupler Isolation, High\/Low Trigger, Arduino \u0026 Raspberry Pi","description":"\u003ch2\u003e4-Channel Relay Module — 5V\/12V\/24V, Optocoupler Isolation, High\/Low Trigger\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003e4-channel relay module\u003c\/strong\u003e with optocoupler isolation allows an Arduino, ESP32, or Raspberry Pi to independently switch four AC or DC loads using digital output pins. Each channel is independently controlled and optocoupler-isolated, protecting the microcontroller from high-voltage transients. The most popular relay module size for home automation, multi-zone irrigation, and multi-channel switching projects.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 4 independent relay channels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoil Voltage:\u003c\/strong\u003e 5V \/ 12V \/ 24V (select version)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum AC Load:\u003c\/strong\u003e 250V \/ 10A per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum DC Load:\u003c\/strong\u003e 30V \/ 10A per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrigger:\u003c\/strong\u003e High level or low level (selectable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Optocoupler per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e SPDT — NO and NC per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Indicators:\u003c\/strong\u003e Status LED per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Interface:\u003c\/strong\u003e 4 digital input pins (IN1–IN4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWiring\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVCC:\u003c\/strong\u003e 5V (or 12V\/24V) | \u003cstrong\u003eGND:\u003c\/strong\u003e Ground\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIN1–IN4:\u003c\/strong\u003e Connect to Arduino\/ESP32 digital output pins\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCOM\/NO\/NC:\u003c\/strong\u003e Load connection terminals per channel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eArduino Example\u003c\/h3\u003e\n\u003cpre\u003e\/\/ Control relay channel 1 (active LOW trigger)\nconst int relay1 = 2;\nvoid setup() { pinMode(relay1, OUTPUT); digitalWrite(relay1, HIGH); } \/\/ OFF\nvoid loop() {\n  digitalWrite(relay1, LOW);  \/\/ ON\n  delay(1000);\n  digitalWrite(relay1, HIGH); \/\/ OFF\n  delay(1000);\n}\u003c\/pre\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSmart home lighting control (4 zones)\u003c\/li\u003e\n  \u003cli\u003eMulti-zone irrigation system\u003c\/li\u003e\n  \u003cli\u003eHVAC zone control\u003c\/li\u003e\n  \u003cli\u003eIndustrial multi-channel switching\u003c\/li\u003e\n  \u003cli\u003eRaspberry Pi home automation server\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e4-channel optocoupler-isolated relay module — independent control of 4 AC\/DC loads for Arduino, ESP32, and Raspberry Pi home automation projects.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"5V","offer_id":46981894373611,"sku":"14:350852#5V","price":17.56,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":46981894406379,"sku":"14:10#12V","price":17.64,"currency_code":"USD","in_stock":true},{"title":"24V","offer_id":46981894439147,"sku":"14:200004889#24V","price":17.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/4-channel-relay-module-5v-12v-24v-optocoupler-arduino-raspberry-pi.webp?v=1761112818"},{"product_id":"2-channel-relay-module-5v-12v-24v-optocoupler-isolated-arduino-ac250v-10a","title":"2-Channel Relay Module 5V \/ 12V \/ 24V | Optocoupler Isolated High\/Low Trigger | AC 250V 10A | Arduino","description":"\u003ch2\u003e2-Channel Relay Module — 5V \/ 12V \/ 24V | Optocoupler Isolated | AC 250V 10A | High\/Low Level Trigger\u003c\/h2\u003e\n\n\u003cp\u003eA versatile, optocoupler-isolated 2-channel relay module that lets any microcontroller — Arduino, ESP32, Raspberry Pi, or STM32 — switch mains AC loads (up to 250V\/10A) and DC loads (up to 30V\/10A) safely and reliably. The critical feature of this module is its \u003cstrong\u003eoptocoupler isolation\u003c\/strong\u003e: the control circuit (your microcontroller) is electrically separated from the relay coil and load circuit, protecting your microcontroller from voltage spikes, inductive kickback, and ground loops that would otherwise damage or reset it. A jumper wire selects high-level or low-level trigger to match your microcontroller’s output logic. Available in 5V, 12V, and 24V coil voltage versions.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 (independent)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC \/ 12V DC \/ 24V DC (as selected)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh or Low (jumper selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptocoupler (electrical isolation between control and load)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax AC Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 250V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax DC Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 30V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 × 41 × 18.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGreen (power) + Red per channel (relay status)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNC, COM, NO per channel (6 screw terminals total)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy Optocoupler Isolation Matters\u003c\/h3\u003e\n\u003cp\u003eRelay coils are inductive loads — when switched off, they generate a voltage spike (back-EMF) that can be many times the supply voltage. Without isolation, this spike travels back through the control signal line and into your microcontroller’s GPIO pin, causing:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGPIO pin damage\u003c\/strong\u003e — overvoltage destroys the input protection diodes on the microcontroller pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicrocontroller reset\u003c\/strong\u003e — voltage spikes on the power rail cause brownout resets\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData corruption\u003c\/strong\u003e — electrical noise from relay switching corrupts I2C, SPI, and UART communications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGround loops\u003c\/strong\u003e — shared ground between high-current relay circuits and sensitive microcontroller circuits causes measurement errors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe optocoupler on this module uses an LED and phototransistor to transmit the control signal as light — completely breaking the electrical connection between the microcontroller and the relay coil. Your microcontroller is fully protected.\u003c\/p\u003e\n\n\u003ch3\u003eHigh vs. Low Level Trigger — How to Choose\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTrigger Mode\u003c\/th\u003e\n\u003cth\u003eRelay ON when\u003c\/th\u003e\n\u003cth\u003eRelay OFF when\u003c\/th\u003e\n\u003cth\u003eUse with\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSignal = HIGH (3.3V or 5V)\u003c\/td\u003e\n\u003ctd\u003eSignal = LOW (0V)\u003c\/td\u003e\n\u003ctd\u003eMost Arduino\/ESP32 GPIO outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLow Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSignal = LOW (0V)\u003c\/td\u003e\n\u003ctd\u003eSignal = HIGH (3.3V or 5V)\u003c\/td\u003e\n\u003ctd\u003eOpen-collector outputs, active-low systems\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSet the trigger level using the jumper wire on the module. No code changes required — just move the jumper.\u003c\/p\u003e\n\n\u003ch3\u003eOutput Terminal Wiring\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTerminal\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eConnect To\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCOM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon (always connected)\u003c\/td\u003e\n\u003ctd\u003eOne side of your load or power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNO\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormally Open (open when relay OFF)\u003c\/td\u003e\n\u003ctd\u003eLoad — circuit closes when relay activates\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormally Closed (closed when relay OFF)\u003c\/td\u003e\n\u003ctd\u003eLoad — circuit opens when relay activates\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eOptocoupler isolation\u003c\/strong\u003e — full electrical separation between microcontroller and relay\/load circuit\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eAC 250V \/ 10A load rating\u003c\/strong\u003e — switches mains lighting, motors, heaters, and appliances\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eDC 30V \/ 10A load rating\u003c\/strong\u003e — switches DC motors, solenoids, and high-current DC loads\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eHigh\/Low trigger selectable\u003c\/strong\u003e — jumper wire selects trigger polarity, no code changes needed\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e5mA trigger current\u003c\/strong\u003e — compatible with 3.3V and 5V GPIO outputs from Arduino, ESP32, Raspberry Pi\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eLED status indicators\u003c\/strong\u003e — green power LED + red relay status LED per channel for visual feedback\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eNC\/COM\/NO terminals\u003c\/strong\u003e — both normally-open and normally-closed configurations available per channel\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCompact 50×41×18.5mm\u003c\/strong\u003e — fits in standard project enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino home automation — switching lights, fans, and appliances\u003c\/li\u003e\n  \u003cli\u003eESP32 \/ ESP8266 WiFi-controlled mains switching\u003c\/li\u003e\n  \u003cli\u003eRaspberry Pi GPIO relay control for home automation\u003c\/li\u003e\n  \u003cli\u003eIndustrial PLC output expansion\u003c\/li\u003e\n  \u003cli\u003eGreenhouse and aquarium automation (lights, pumps, heaters)\u003c\/li\u003e\n  \u003cli\u003e3D printer heated bed and hotend power switching\u003c\/li\u003e\n  \u003cli\u003eCNC machine spindle and coolant pump control\u003c\/li\u003e\n  \u003cli\u003eAutomatic irrigation system pump control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eArduino Wiring Example\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eConnect module VCC to Arduino 5V (or 12V\/24V external supply for 12V\/24V versions).\u003c\/li\u003e\n  \u003cli\u003eConnect module GND to Arduino GND.\u003c\/li\u003e\n  \u003cli\u003eConnect IN1 to Arduino digital pin (e.g., D7) for channel 1 control.\u003c\/li\u003e\n  \u003cli\u003eConnect IN2 to Arduino digital pin (e.g., D8) for channel 2 control.\u003c\/li\u003e\n  \u003cli\u003eSet jumper to HIGH trigger (default for most Arduino projects).\u003c\/li\u003e\n  \u003cli\u003eWire your AC or DC load between COM and NO (or NC) terminals.\u003c\/li\u003e\n  \u003cli\u003eUse \u003ccode\u003edigitalWrite(7, HIGH)\u003c\/code\u003e to activate relay 1, \u003ccode\u003edigitalWrite(7, LOW)\u003c\/code\u003e to deactivate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cem\u003eWarning: AC mains wiring must be performed by a qualified electrician. Ensure all mains connections are insulated and the module is housed in a suitable enclosure before powering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the 5V module with a 3.3V Arduino (e.g., Arduino Due, ESP32)?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The optocoupler trigger current is only 5mA, which is within the output capability of 3.3V GPIO pins. The relay coil is powered separately from the module VCC — connect VCC to 5V and use 3.3V signals on the IN pins.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I switch both channels simultaneously?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Both channels are independent and can be activated simultaneously or in any sequence.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the relay switching lifetime?\u003c\/strong\u003e\u003cbr\u003eA: Standard relay modules of this type are rated for approximately 100,000 mechanical switching cycles at rated load. Reduce load current to extend relay life.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× 2-Channel Relay Module (coil voltage as selected: 5V \/ 12V \/ 24V)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"12V","offer_id":46981894537451,"sku":"14:10#12V","price":5.08,"currency_code":"USD","in_stock":true},{"title":"5V","offer_id":46981894570219,"sku":"14:350852#5V","price":5.08,"currency_code":"USD","in_stock":true},{"title":"24V","offer_id":46981894602987,"sku":"14:200004889#24V","price":5.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/2-channel-relay-module-5v-12v-24v-optocoupler-arduino.webp?v=1761112773"},{"product_id":"1-channel-relay-module-5v-12v-24v-optocoupler-arduino","title":"1-Channel Relay Module 5V\/12V\/24V — Optocoupler Isolation, High\/Low Trigger, Arduino","description":"\u003ch2\u003e1-Channel Relay Module — 5V\/12V\/24V, Optocoupler Isolation, High\/Low Trigger\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003esingle-channel relay module\u003c\/strong\u003e with SMD optocoupler isolation allows an Arduino, ESP32, or Raspberry Pi to switch AC and DC loads up to 250V\/10A using a low-voltage digital signal. The optocoupler provides electrical isolation between the control circuit and the high-voltage load circuit, protecting the microcontroller from voltage spikes and noise. Supports both high-level and low-level trigger for compatibility with any MCU output.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoil Voltage:\u003c\/strong\u003e 5V \/ 12V \/ 24V (select version)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum AC Load:\u003c\/strong\u003e 250V \/ 10A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum DC Load:\u003c\/strong\u003e 30V \/ 10A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrigger:\u003c\/strong\u003e High level or low level (selectable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e SMD optocoupler — electrical isolation between control and load\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e SPDT — NO (Normally Open) and NC (Normally Closed)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Indicator:\u003c\/strong\u003e Status LED for relay state\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHigh vs Low Level Trigger\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh level trigger:\u003c\/strong\u003e Relay activates when control pin goes HIGH (3.3V or 5V) — default for most Arduino projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow level trigger:\u003c\/strong\u003e Relay activates when control pin goes LOW (GND) — for active-LOW MCU outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWiring\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVCC:\u003c\/strong\u003e 5V (or 12V\/24V depending on version)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGND:\u003c\/strong\u003e Ground\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIN:\u003c\/strong\u003e Control signal from Arduino digital output pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCOM:\u003c\/strong\u003e Common terminal of relay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNO:\u003c\/strong\u003e Normally Open — connects to COM when relay is activated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNC:\u003c\/strong\u003e Normally Closed — connects to COM when relay is NOT activated\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSmart home light switching (AC 220V)\u003c\/li\u003e\n  \u003cli\u003eArduino-controlled appliance switching\u003c\/li\u003e\n  \u003cli\u003ePump and solenoid valve control\u003c\/li\u003e\n  \u003cli\u003eTemperature-controlled heating\/cooling switching\u003c\/li\u003e\n  \u003cli\u003eIoT home automation with ESP32\/ESP8266\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSingle-channel, optocoupler-isolated relay module — safe and reliable AC\/DC load switching for Arduino, ESP32, and Raspberry Pi projects.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"12V","offer_id":46981894635755,"sku":"14:350850#12V","price":8.24,"currency_code":"USD","in_stock":true},{"title":"5V","offer_id":46981894668523,"sku":"14:350852#5V","price":8.16,"currency_code":"USD","in_stock":true},{"title":"24V","offer_id":46981894701291,"sku":"14:1254#24V","price":8.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/1-channel-relay-module-5v-12v-24v-optocoupler-arduino.webp?v=1761112703"},{"product_id":"srd-5v-12v-24v-10a-250vac-5-pin-relay-module-for-household-appliances-and-diy-electronics","title":"SRD 5V\/12V\/24V 10A 250VAC 5-Pin Relay Module for Household Appliances and DIY Electronics","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e--\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-40-+85\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSMD\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eQuantity\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5V 12V 24V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRelay\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"relatedProduct\" id=\"1005000012654807\" title=\"\" type=\"relation\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003e5\/10PCS Relay SRD-05VDC-SL-C SRD-24VDC-SL-C SRD-12VDC-SL-C 5V 12V 24V 10A 250VAC 5Pin Relay Relais for Household Appliance Board\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e \n\u003cp style=\"margin:0;display: block;width: 100%;\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf12807cd7a4d4f04acbfb8ad9d5aeaadp.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sec468636ca1f4990b5f106524e08ebc7C.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sc0a52bcb93c644f4b497c0413ce6e462j.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S86a8694c786347d2955d94b8cc97d26cC.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S697ddd184a054033a8f267ab337151e1O.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S1770c6b1e5d74658a422c1615ed73f16U.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sc5f2de4928984c9388d519578871ab630.jpg\"\u003e\u003c\/p\u003e \n\u003cspan style=\"font-family:Arial,Helvetica,sans-serif;\"\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"5V \/ 5 PCS","offer_id":46981894734059,"sku":"14:1202#5V;3:201010228#5 PCS","price":11.2,"currency_code":"USD","in_stock":true},{"title":"5V \/ 10 PCS","offer_id":46981894766827,"sku":"14:1202#5V;3:1981284404#10 PCS","price":20.24,"currency_code":"USD","in_stock":true},{"title":"12V \/ 5 PCS","offer_id":46981894799595,"sku":"14:350852#12V;3:201010228#5 PCS","price":11.2,"currency_code":"USD","in_stock":true},{"title":"12V \/ 10 PCS","offer_id":46981894832363,"sku":"14:350852#12V;3:1981284404#10 PCS","price":20.24,"currency_code":"USD","in_stock":true},{"title":"24V \/ 5 PCS","offer_id":46981894865131,"sku":"14:351074#24V;3:201010228#5 PCS","price":11.2,"currency_code":"USD","in_stock":true},{"title":"24V \/ 10 PCS","offer_id":46981894897899,"sku":"14:351074#24V;3:1981284404#10 PCS","price":20.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/srd-5v-12v-24v-10a-5pin-relay-module.webp?v=1761112599"},{"product_id":"5a-ac-overcurrent-protection-sensor-module-with-12v-relay","title":"5A AC Overcurrent Protection Sensor Module with 12V Relay","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaximum detection wire diameter\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5.2mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMounting hole\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eThe hole diameter is 3mm, and the hole distance is 52.5mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-40℃~+85℃,0-95%RH\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating frequency range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e20Hz ~ 400Hz\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput mode\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSwitch signal output\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDC12V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eVoltage Regulator\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eWorking current\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e\u0026lt;20MA\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\u003cdiv id=\"product-description\" class=\"description--product-description--Mjtql28\"\u003e\u003cdiv class=\"description--origin-part--rWy05pE\"\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\n\u003ch1\u003e\u003c\/h1\u003e\n\u003ch1 id=\"tl_1\"\u003eMódulo sensor de protección contra sobrecorriente 5A Sensor de corriente CA Relé de 12V\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sa7b697e1c72340779b5c7b960b68ade1M.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S500279fb9564448691036e0c4c7c6e80B.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sfaa9e5c6539a4638b5d61b79e3a0ecb84.jpg\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf03111a70791490aad863f747babfd1fh.png\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0e21b31a354d4289bbadaf8a3b46d5b4o.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4773dcc652a4420b89fc2d6ee201354eA.jpg\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cbr\u003e","brand":"Keszoox","offers":[{"title":"1pcs","offer_id":46985497018603,"sku":"14:350852#1pcs","price":13.72,"currency_code":"USD","in_stock":true},{"title":"10pcs","offer_id":46985497051371,"sku":"14:1254#10pcs","price":106.76,"currency_code":"USD","in_stock":true},{"title":"5pcs","offer_id":46985497084139,"sku":"14:4044226#5pcs","price":65.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/5a-ac-overcurrent-protection-module-12v-relay.webp?v=1761285777"},{"product_id":"6-30v-relay-module-with-power-off-delay-trigger-timing-circuit-usb-interface","title":"6-30V Relay Module with Power-Off Delay, Trigger \u0026 Timing Circuit, USB Interface","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-40-85℃\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S71fcffbe26c844c3a8e512676e9d390e9.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew2_f62dod1u\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S865f1ef938604a0a992a697cb40cd623R.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew3_qdhnz0t3\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf6213a54ea5e461ab9bd6433e2aa8a532.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew4_uy8pffy9\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S650590e730434b3c98516200c93abd52c.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew5_23vcfius\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf976f8abce27492983375c945dc6a3c3U.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew6_er2qnh1t\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sad0a543f4f334a08ae8b88d46a3786e8y.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew7_er2qnh1t\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0e21b31a354d4289bbadaf8a3b46d5b4o.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew8_t15hiv5o\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4773dcc652a4420b89fc2d6ee201354eA.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\2065bc43028b46a3a9847b4ca4a65be2\\dImgNew\\DImgNew9_3oof7dz3\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46985506914539,"sku":"\u003cnone\u003e","price":13.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/6-30v-relay-delay-trigger-timing-usb.webp?v=1761278898"},{"product_id":"5v-30a-relay-module-with-high-low-level-trigger-for-smart-home-plc-control","title":"5V 30A Relay Module with High\/Low Level Trigger for Smart Home \u0026 PLC Control","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eVoltage Regulator\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\n \u003cdiv id=\"product-description\" data-spm=\"1000023\" class=\"description--product-description--Mjtql28\" data-pl=\"product-description\"\u003e\n  \u003cdiv class=\"description--origin-part--rWy05pE\"\u003e\n   \u003cdiv class=\"detailmodule_html\"\u003e\n    \u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n     \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6404822b0e5948289274663773a3afe9U.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sc100f9e7d98d4fdcacbbfb59dad5b42dM.jpg\"\u003e\u003c\/p\u003e\n     \u003cp\u003e\u003cstrong style=\"font-family:tahoma, geneva, sans-serif;font-size:20px;box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;\"\u003e\u003cu style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;\" data-spm-anchor-id=\"a2g0o.detail.1000023.i2.7bb8X8fKX8fK4H\" id=\"tl_1\"\u003eCaracterísticas:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_2\"\u003eUso de tablero de doble cara\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\" data-spm-anchor-id=\"a2g0o.detail.1000023.i6.7bb8X8fKX8fK4H\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_3\"\u003eUsando un relé de alta potencia, controla la carga hasta 30A\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_4\"\u003eCon aislamiento de cada optoacoplador, capacidad antiinterferencia\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\" data-spm-anchor-id=\"a2g0o.detail.1000023.i7.7bb8X8fKX8fK4H\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_5\"\u003eTerminales negros 9500, más convenientes para el cableado de alta corriente\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_6\"\u003eCada circuito tiene un relé en la indicación LED\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_7\"\u003eLos módulos cumplen con las normas internacionales de seguridad con ranuras de aislamiento en las áreas de control y carga\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;\"\u003e \u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:20px;font-family:tahoma, geneva, sans-serif;\"\u003e\u003cstrong style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;\"\u003e\u003cu style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;\" id=\"tl_8\"\u003eAplicaciones:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_9\"\u003eControl de equipos de automatización PLC, Control de Sistemas Industriales, control de Internet de las cosas, control inteligente doméstico, experimento de desarrollo de aficionados electrónicos, todo tipo de modificación de circuitos\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;\" data-spm-anchor-id=\"a2g0o.detail.1000023.i0.7bb8X8fKX8fK4H\"\u003e \u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;\" data-spm-anchor-id=\"a2g0o.detail.1000023.i1.7bb8X8fKX8fK4H\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:20px;font-family:tahoma, geneva, sans-serif;\"\u003e\u003cstrong style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;\"\u003e\u003cu style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;\" id=\"tl_10\"\u003eEspecificaciones:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_11\"\u003eVoltaje de alimentación: 5V\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_12\"\u003eCorriente de reposo: 5mA\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_13\"\u003eCorriente máxima de funcionamiento: 190mA\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\" data-spm-anchor-id=\"a2g0o.detail.1000023.i4.7bb8X8fKX8fK4H\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_14\"\u003eModo de disparo: gatillo bajo, gatillo alto\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_15\"\u003eVoltaje de carga: CC 30V o CA 250V\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\" data-spm-anchor-id=\"a2g0o.detail.1000023.i3.7bb8X8fKX8fK4H\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_16\"\u003eCorriente de carga: 30A\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_17\"\u003eVida del relé: más de 100.000 veces\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_18\"\u003ePeso del producto: aproximadamente 200G\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\" id=\"tl_19\"\u003eTamaño: aproximadamente 70*72*22MM\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e \u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e \u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e\u003cspan style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;max-width:100%;word-break:break-word;font-size:18px;font-family:tahoma, geneva, sans-serif;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sde54274420f2420f92ddd0e774719173J.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S96679c17a66443c1946638b95a01a844T.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S94a7cdfc78c641129355d4e18aaf621ew.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sdbf82bf5eb96424b8dca500536320dc0O.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0191c10cfebf4b03927f78fcbb30357fU.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sbeb05bc7a1ea46b483fa3d41b0c1ad1cC.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sba6f6df203374e168d0f9a2b28b9a0f8e.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sb00bc1848e864064aced115cdb9cb2250.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S11cbe5185a694dd2891756bdfc50c9d8m.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S5e50557aa9754f1abd83f767213c83ccV.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S08cdcb7a1dab466a83b7ea9df9283e6bA.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sdf79baea7c6e445f89fa9011b6583767L.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;font-family:'Open Sans', sans-serif;\"\u003e \u003c\/p\u003e\n     \u003cp style=\"box-sizing:border-box;-webkit-tap-highlight-color:transparent;outline:0px;margin:0px;padding:0px;line-height:inherit;\"\u003e \u003c\/p\u003e\n    \u003c\/div\u003e\n   \u003c\/div\u003e\n  \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0e21b31a354d4289bbadaf8a3b46d5b4o.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\906d0cb6b8e3491c9e8d285302d7bf1d\\dImgNew\\DImgNew9_p6kzxlxg.jpg\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4773dcc652a4420b89fc2d6ee201354eA.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\906d0cb6b8e3491c9e8d285302d7bf1d\\dImgNew\\DImgNew10_p6kzxlxg.jpg\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e","brand":"Keszoox","offers":[{"title":"1 channel 5V","offer_id":46985507274987,"sku":"14:350852#1 channel 5V","price":14.04,"currency_code":"USD","in_stock":true},{"title":"2 channel 5V","offer_id":46985507307755,"sku":"14:351074#2 channel 5V","price":22.56,"currency_code":"USD","in_stock":true},{"title":"4 channel 5V","offer_id":46985507340523,"sku":"14:4044226#4 channel 5V","price":38.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/5v-30a-relay-module-smart-home-plc.webp?v=1761278766"},{"product_id":"srd-05-12-24vdc-5pin-10a-relay-srd-sl-c-spdt-pcb-mount-electromagnetic","title":"SRD-05\/12\/24VDC 5-Pin 10A Relay | SRD-SL-C | DC Electromagnetic Switch | SPDT | PCB Mount","description":"\u003ch2\u003eSRD-05\/12\/24VDC 5-Pin 10A Relay — SRD-SL-C | SPDT | PCB Mount | DC Electromagnetic Switch\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSRD series 5-pin PCB mount relay\u003c\/strong\u003e is the most commonly used general-purpose relay in Arduino relay modules, home automation controllers, and industrial control circuits. The SPDT (Single Pole Double Throw) contact configuration provides both normally-open (NO) and normally-closed (NC) switching in a single relay, enabling both make-on-energise and break-on-energise circuit configurations. Available in 5V, 12V, and 24V coil voltage versions to match your control circuit supply voltage. Rated for AC 250V\/10A and DC 30V\/10A load switching — suitable for mains lighting, motors, heaters, and DC loads.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSRD-SL-C (SRD series)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC \/ 12V DC \/ 24V DC (as selected)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContact Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPDT (1 Form C: NO + NC + COM)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 pins (2 coil + 3 contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax AC Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 250V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax DC Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 30V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMount Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePCB mount (DIP, through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePin Configuration (5-Pin SRD)\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoil − (negative)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoil + (positive)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin 3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCOM (common contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin 4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNC (normally closed — connected to COM when relay OFF)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin 5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNO (normally open — connected to COM when relay ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSPDT Contact Configuration — How to Use\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eContact\u003c\/th\u003e\n\u003cth\u003eRelay OFF (coil de-energised)\u003c\/th\u003e\n\u003cth\u003eRelay ON (coil energised)\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCOM – NO\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOpen (circuit broken)\u003c\/td\u003e\n\u003ctd\u003eClosed (circuit made)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCOM – NC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClosed (circuit made)\u003c\/td\u003e\n\u003ctd\u003eOpen (circuit broken)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eUse COM–NO for “normally off, switch on” applications (e.g., turn on a light when relay activates). Use COM–NC for “normally on, switch off” applications (e.g., fail-safe circuits that open on relay activation).\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSPDT configuration\u003c\/strong\u003e — both NO and NC contacts available for maximum circuit flexibility\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eAC 250V \/ 10A load rating\u003c\/strong\u003e — switches mains lighting, motors, and heaters\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eDC 30V \/ 10A load rating\u003c\/strong\u003e — switches DC motors, solenoids, and high-current DC loads\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e5V \/ 12V \/ 24V coil options\u003c\/strong\u003e — matches Arduino (5V), automotive (12V), and industrial (24V) control voltages\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003ePCB mount DIP package\u003c\/strong\u003e — direct PCB soldering, compatible with standard relay module PCBs\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSRD-SL-C series\u003c\/strong\u003e — the standard relay used in widely-available Arduino relay module boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino relay module replacement relay\u003c\/li\u003e\n  \u003cli\u003eHome automation mains switching (lights, fans, appliances)\u003c\/li\u003e\n  \u003cli\u003eIndustrial control panel relay\u003c\/li\u003e\n  \u003cli\u003eMotor starter and contactor auxiliary relay\u003c\/li\u003e\n  \u003cli\u003eAlarm system output relay\u003c\/li\u003e\n  \u003cli\u003eAutomotive relay (12V version)\u003c\/li\u003e\n  \u003cli\u003eHVAC control relay\u003c\/li\u003e\n  \u003cli\u003eCustom relay board design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCoil Drive Requirements\u003c\/h3\u003e\n\u003cp\u003eThe relay coil requires sufficient current to energise reliably:\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eCoil Voltage\u003c\/th\u003e\n\u003cth\u003eCoil Resistance (typical)\u003c\/th\u003e\n\u003cth\u003eCoil Current (typical)\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003ctd\u003e~70Ω\u003c\/td\u003e\n\u003ctd\u003e~70mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003ctd\u003e~400Ω\u003c\/td\u003e\n\u003ctd\u003e~30mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003ctd\u003e~1600Ω\u003c\/td\u003e\n\u003ctd\u003e~15mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eArduino GPIO pins are limited to 40mA. Always drive relay coils via a transistor or relay driver IC (e.g., ULN2003) — do not connect relay coils directly to Arduino GPIO pins.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I connect this relay directly to an Arduino GPIO pin?\u003c\/strong\u003e\u003cbr\u003eA: No. The 5V relay coil draws ~70mA, exceeding the Arduino GPIO pin’s 40mA limit. Use a transistor (e.g., 2N2222, BC547) or a relay driver module with optocoupler isolation to drive the relay from an Arduino GPIO pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is a flyback diode required?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Always connect a flyback diode (e.g., 1N4007) across the relay coil terminals (cathode to positive, anode to negative) to suppress the back-EMF spike when the relay de-energises. Most relay module boards include this diode.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× SRD-SL-C 5-Pin PCB Mount Relay (coil voltage as selected: 5V \/ 12V \/ 24V)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"5V","offer_id":46985521856747,"sku":"14:1202#5V","price":5.68,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":46985521889515,"sku":"14:350852#12V","price":5.8,"currency_code":"USD","in_stock":true},{"title":"24V","offer_id":46985521922283,"sku":"14:351074#24V","price":5.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/srd-05-12-24vdc-5pin-10a-relay-sldc.webp?v=1761275741"},{"product_id":"5pcs-g3mb-202p-solid-state-relay-module-dc-control-ac-ssr-four-pin","title":"5pcs G3MB-202P Solid State Relay Module DC Control AC SSR Four-Pin","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eG3MB-202P  5V\/12V\/24V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eVoltage Regulator\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew2_s48opggb.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew2_s48opggb.jpg\"\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cp\u003e\u003cimg src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew3_qa37ri87.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew3_qa37ri87.jpg\"\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cimg src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew4_qa37ri87.jpg\" style=\"width:800px;\" 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data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew6_qa37ri87.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew7_qa37ri87.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew7_qa37ri87.jpg\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew8_qa37ri87.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew8_qa37ri87.jpg\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew9_4z9lzhe8.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew9_4z9lzhe8.jpg\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew10_4z9lzhe8.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew10_4z9lzhe8.jpg\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew11_4z9lzhe8.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew11_4z9lzhe8.jpg\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"D:\\%E5%85%A8%E7%90%83%E4%BA%A4%E6%98%93%E5%8A%A9%E6%89%8B\\%E4%BA%A7%E5%93%81%E7%AE%A1%E7%90%86\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew12_4z9lzhe8.jpg\" data-src=\"D:\\全球交易助手\\产品管理\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\4084a19bd1a24bf7910e69e788098afd\\dImgNew\\DImgNew12_4z9lzhe8.jpg\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_image\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"http:\/\/gta-product.cnfth.com\/api\/Image\/OssImage?taskType=6\u0026amp;imgeIdentity=DescribeTemplateImages\/183158\/4cbd487273ce25d4cd6bc1c17ac3365b.jpg\" data-src=\"http:\/\/gta-product.cnfth.com\/api\/Image\/OssImage?taskType=6\u0026amp;imgeIdentity=DescribeTemplateImages\/183158\/4cbd487273ce25d4cd6bc1c17ac3365b.jpg\"\u003e\n \u003cimg class=\"detail-desc-decorate-image\" src=\"http:\/\/gta-product.cnfth.com\/api\/Image\/OssImage?taskType=6\u0026amp;imgeIdentity=DescribeTemplateImages\/183158\/a4f5e38483de7c3141926c0af602e5e8.jpg\" data-src=\"http:\/\/gta-product.cnfth.com\/api\/Image\/OssImage?taskType=6\u0026amp;imgeIdentity=DescribeTemplateImages\/183158\/a4f5e38483de7c3141926c0af602e5e8.jpg\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"5PCS G3MB-202P(12V)","offer_id":46985551446251,"sku":"14:350852#5PCS G3MB-202P(12V)","price":21.6,"currency_code":"USD","in_stock":true},{"title":"5PCS G3MB-202P(5V)","offer_id":46985551479019,"sku":"14:1202#5PCS G3MB-202P(5V)","price":21.48,"currency_code":"USD","in_stock":true},{"title":"10PCS G3MB-202P(5V)","offer_id":46985551511787,"sku":"14:175#10PCS G3MB-202P(5V)","price":50.44,"currency_code":"USD","in_stock":true},{"title":"5PCS G3MB-202P(24V)","offer_id":46985551544555,"sku":"14:351074#5PCS G3MB-202P(24V)","price":22.64,"currency_code":"USD","in_stock":true},{"title":"10PCS G3MB-202P(5V) 1","offer_id":46985551577323,"sku":"14:366#10PCS G3MB-202P(5V)","price":52.68,"currency_code":"USD","in_stock":true},{"title":"10PCS G3MB-202P(5V) 2","offer_id":46985551610091,"sku":"14:193#10PCS G3MB-202P(5V)","price":49.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/g3mb-202p-solid-state-relay-module.webp?v=1761198135"},{"product_id":"5v-1-channel-solid-state-relay-module-ssr-high-low-trigger-250v-2a-arduino","title":"5V 1-Channel Solid State Relay Module (SSR) — High\/Low Level Trigger, 250V AC \/ 2A, for Arduino","description":"\u003ch2\u003e5V 1-Channel Solid State Relay Module (SSR) — High \/ Low Level Trigger, 250V AC \/ 2A\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003esolid state relay (SSR) module\u003c\/strong\u003e uses an optocoupler-isolated triac to switch AC loads up to 250V \/ 2A silently and without mechanical wear. Controlled by a 5V logic signal from Arduino, Raspberry Pi, or any microcontroller, it supports both high-level and low-level trigger modes. Unlike mechanical relays, SSRs produce no click noise, no contact arcing, and have virtually unlimited switching cycles.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC (logic input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Mode\u003c\/td\u003e\n\u003ctd\u003eHigh level or Low level (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Voltage\u003c\/td\u003e\n\u003ctd\u003eUp to 250V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Current\u003c\/td\u003e\n\u003ctd\u003e2A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptocoupler (input\/output isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Type\u003c\/td\u003e\n\u003ctd\u003eZero-crossing (silent, no arcing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eSSR vs Mechanical Relay — Key Differences\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSolid State Relay (SSR)\u003c\/th\u003e\n\u003cth\u003eMechanical Relay\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003eSilent\u003c\/td\u003e\n\u003ctd\u003eAudible click\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Speed\u003c\/td\u003e\n\u003ctd\u003eFast (ms)\u003c\/td\u003e\n\u003ctd\u003eSlower (~10ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Wear\u003c\/td\u003e\n\u003ctd\u003eNone (no moving parts)\u003c\/td\u003e\n\u003ctd\u003eYes (limited cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArcing\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eYes (at high current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eFrequent switching, noise-sensitive\u003c\/td\u003e\n\u003ctd\u003eHigh current, low cost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose This SSR Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSilent operation\u003c\/strong\u003e — no click noise, ideal for quiet environments\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eOptocoupler isolation\u003c\/strong\u003e — protects Arduino from AC mains voltage\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eHigh\/low trigger selectable\u003c\/strong\u003e — compatible with active-high and active-low GPIO\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e-40°C to +85°C\u003c\/strong\u003e — reliable in industrial and outdoor environments\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNo moving parts\u003c\/strong\u003e — virtually unlimited switching cycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino AC mains load switching (lamp, fan, heater)\u003c\/li\u003e\n\u003cli\u003eHome automation silent relay control\u003c\/li\u003e\n\u003cli\u003e3D printer heated bed AC power control\u003c\/li\u003e\n\u003cli\u003eIndustrial AC equipment on\/off control\u003c\/li\u003e\n\u003cli\u003eAquarium pump and lighting timer control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × 5V 1-Channel Solid State Relay Module (SSR)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e⚠️ Warning: This module switches mains AC voltage. Ensure proper insulation and follow electrical safety guidelines when wiring to AC loads.\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991435923691,"sku":"\u003cnone\u003e","price":5.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/5v-1-channel-solid-state-relay-module-ssr-arduino-250v-2a.webp?v=1761880112"},{"product_id":"dc-12v-24v-dual-mos-led-digital-time-delay-relay-timer-control-module","title":"DC 12V \/ 24V Dual MOS LED Digital Time Delay Relay Timer Control Module","description":"\u003ch2\u003eDC 12V \/ 24V Dual MOS LED Digital Time Delay Relay Timer Control Module\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003edual MOS time delay relay module\u003c\/strong\u003e provides programmable ON-delay and OFF-delay timing control for DC 12V or 24V systems. Using MOSFET output switches instead of mechanical relays, it offers silent, high-cycle-life switching with an LED display for real-time timer status. Ideal for automation, motor control, and DIY timing circuits requiring precise delay control.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003eDC 12V or 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDual MOS (MOSFET, no mechanical relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTiming Modes\u003c\/td\u003e\n\u003ctd\u003eON-delay, OFF-delay, cycle timing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eLED (timer status)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003eHigh current MOS switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eProgrammable via onboard buttons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose Dual MOS Timer Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMOSFET output\u003c\/strong\u003e — silent switching, no relay click, unlimited cycle life\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eDual channel\u003c\/strong\u003e — independent ON and OFF delay control\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLED display\u003c\/strong\u003e — real-time countdown and status visibility\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e12V \/ 24V compatible\u003c\/strong\u003e — covers most DC automation system voltages\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eProgrammable timing\u003c\/strong\u003e — set delay duration via onboard buttons\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMotor soft-start delay control\u003c\/li\u003e\n\u003cli\u003eAutomatic light ON\/OFF timer\u003c\/li\u003e\n\u003cli\u003ePump and fan cycle timing control\u003c\/li\u003e\n\u003cli\u003eDIY automation delay switch\u003c\/li\u003e\n\u003cli\u003eRelay replacement for high-cycle applications\u003c\/li\u003e\n\u003cli\u003eArduino project external timing control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × DC 12V\/24V Dual MOS LED Digital Time Delay Relay Timer Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991438807275,"sku":"\u003cnone\u003e","price":7.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/dc-12v-24v-dual-mos-led-digital-time-delay-relay-timer-control-module-diy.webp?v=1761879277"},{"product_id":"multi-channel-relay-module-5v-12v-24v-optocoupler-high-low-trigger-arduino","title":"Multi-Channel Relay Module 5V\/12V\/24V — Optocoupler, High\/Low Trigger, Arduino","description":"\u003ch2\u003eMulti-Channel Relay Module — 5V \/ 12V \/ 24V, Optocoupler Isolated\u003c\/h2\u003e\u003cp\u003eA versatile \u003cstrong\u003eoptocoupler-isolated relay module\u003c\/strong\u003e available in \u003cstrong\u003e1 to 16 channel configurations\u003c\/strong\u003e with coil voltage options of \u003cstrong\u003e5V, 12V, or 24V\u003c\/strong\u003e. Each relay features \u003cstrong\u003eSPDT (Single Pole Double Throw)\u003c\/strong\u003e contacts rated at \u003cstrong\u003eAC 250V\/10A and DC 30V\/10A\u003c\/strong\u003e, making it suitable for controlling mains-voltage loads from low-voltage microcontrollers including Arduino, ESP32, STM32, and Raspberry Pi.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Voltage Options\u003c\/td\u003e\n\u003ctd\u003e5V \/ 12V \/ 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Options\u003c\/td\u003e\n\u003ctd\u003e1 \/ 2 \/ 4 \/ 6 \/ 8 \/ 12 \/ 16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating (AC)\u003c\/td\u003e\n\u003ctd\u003e250V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating (DC)\u003c\/td\u003e\n\u003ctd\u003e30V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Type\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO \/ COM \/ NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Level\u003c\/td\u003e\n\u003ctd\u003eHigh or Low (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptocoupler (PC817 or equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e5W per relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LEDs\u003c\/td\u003e\n\u003ctd\u003eYes (per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose This Relay Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptocoupler isolation\u003c\/strong\u003e — protects microcontroller GPIO from high-voltage transients and noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh\/Low trigger selectable\u003c\/strong\u003e — compatible with both active-high and active-low GPIO logic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V \/ 12V \/ 24V coil options\u003c\/strong\u003e — matches your system power supply without extra converters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPDT contacts\u003c\/strong\u003e — use NO (normally open) or NC (normally closed) for fail-safe designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePer-channel LED indicators\u003c\/strong\u003e — instant visual feedback on relay state during testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1–16 channel scalability\u003c\/strong\u003e — from single-load control to full multi-zone automation\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart home automation\u003c\/strong\u003e — control lights, fans, and appliances from Arduino or ESP32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrrigation systems\u003c\/strong\u003e — multi-zone solenoid valve control for garden automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial control\u003c\/strong\u003e — PLC output expansion, machine interlocks, and alarm systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVAC control\u003c\/strong\u003e — thermostat relay switching for heating and cooling systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome security\u003c\/strong\u003e — door lock, siren, and alarm relay control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED lighting control\u003c\/strong\u003e — high-power LED strip switching beyond GPIO current limits\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cp\u003eWorks with \u003cstrong\u003eArduino UNO, Mega, Nano, ESP8266, ESP32, STM32, Raspberry Pi\u003c\/strong\u003e, and any microcontroller with 3.3V or 5V GPIO. For 3.3V systems, use a 5V relay module with optocoupler isolation to avoid GPIO damage.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between high-level and low-level trigger?\u003c\/strong\u003e\u003cbr\u003eA: High-level trigger activates the relay when the signal pin is HIGH (3.3V\/5V). Low-level trigger activates when the pin is LOW (GND). Most Arduino projects use active-low (LOW trigger) relay modules.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I control 220V AC loads with this relay?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The relay contacts are rated AC 250V\/10A, suitable for controlling 110V and 220V mains loads. 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The relay is controlled by D1 Mini GPIO pin \u003cstrong\u003eD1 (GPIO5)\u003c\/strong\u003e and includes \u003cstrong\u003eNO\/NC\/COM terminals\u003c\/strong\u003e for load connection. Combined with the D1 Mini’s WiFi capability, this creates a complete WiFi-controlled relay in a compact stackable form factor — ideal for smart home switching, MQTT-controlled appliances, and IoT relay projects.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Board\u003c\/td\u003e\n\u003ctd\u003eWemos D1 Mini (ESP8266)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Channels\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Type\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO \/ COM \/ NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC Load\u003c\/td\u003e\n\u003ctd\u003e250V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax DC Load\u003c\/td\u003e\n\u003ctd\u003e30V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Pin\u003c\/td\u003e\n\u003ctd\u003eD1 (GPIO5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Logic\u003c\/td\u003e\n\u003ctd\u003eActive HIGH (D1 Mini GPIO HIGH = relay ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LED\u003c\/td\u003e\n\u003ctd\u003eYes (relay status)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eShield (stacks directly on D1 Mini)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose This Relay Shield?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo wiring required\u003c\/strong\u003e — stacks directly onto D1 Mini via pin headers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e250V\/10A rating\u003c\/strong\u003e — controls mains-voltage appliances (lights, fans, heaters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPDT contacts\u003c\/strong\u003e — use NO for normally-off or NC for fail-safe normally-on loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGPIO5 control\u003c\/strong\u003e — simple \u003ccode\u003edigitalWrite(D1, HIGH)\u003c\/code\u003e to activate relay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus LED\u003c\/strong\u003e — visual confirmation of relay state during development\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact stackable design\u003c\/strong\u003e — complete WiFi relay in minimal footprint\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart home switching\u003c\/strong\u003e — WiFi-controlled lights, fans, and appliances via Blynk, Home Assistant, or MQTT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMQTT relay controller\u003c\/strong\u003e — subscribe to MQTT topic to toggle relay from any device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScheduled automation\u003c\/strong\u003e — time-based switching with NTP-synced D1 Mini\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice control\u003c\/strong\u003e — integrate with Alexa or Google Home via Sinric Pro or ESPHome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote power control\u003c\/strong\u003e — remotely switch equipment over WiFi from anywhere\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cp\u003eDesigned exclusively for \u003cstrong\u003eWemos D1 Mini\u003c\/strong\u003e (ESP8266-based). 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Set it HIGH to energize the relay, LOW to release it.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1× Wemos D1 Mini 1-Channel Relay Shield\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eD1 Mini ESP8266 board NOT included\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991474327787,"sku":"\u003cnone\u003e","price":5.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/wemos-d1-mini-1-channel-relay-shield-esp8266.webp?v=1761631306"},{"product_id":"ir-infrared-receiver-relay-module-1-channel-5v-remote-control-smart-home","title":"IR Infrared Receiver Relay Module — 1-Channel, 5V, Active Remote Control, Smart Home Switch","description":"\u003ch2\u003eIR Infrared Receiver Relay Module — 1-Channel, 5V with Remote Control\u003c\/h2\u003e\u003cp\u003eControl any AC or DC load wirelessly with this \u003cstrong\u003e1-channel infrared (IR) receiver relay module\u003c\/strong\u003e. The module includes an \u003cstrong\u003eIR receiver\u003c\/strong\u003e and a \u003cstrong\u003erelay\u003c\/strong\u003e that switches when it detects the programmed IR signal from the included remote control. No microcontroller or programming required — simply power the module, learn the remote button, and control your load by pressing the button. Ideal for \u003cstrong\u003esmart home switching, appliance control, and DIY automation\u003c\/strong\u003e projects.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIR Receiver\u003c\/td\u003e\n\u003ctd\u003e38kHz carrier frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating (AC)\u003c\/td\u003e\n\u003ctd\u003e250V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating (DC)\u003c\/td\u003e\n\u003ctd\u003e30V \/ 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Type\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO \/ COM \/ NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Modes\u003c\/td\u003e\n\u003ctd\u003eToggle \/ Momentary (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemote Control\u003c\/td\u003e\n\u003ctd\u003eIncluded (IR remote)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLearning Function\u003c\/td\u003e\n\u003ctd\u003eYes (learn any NEC\/RC5 IR code)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LED\u003c\/td\u003e\n\u003ctd\u003eYes (relay status)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose This IR Relay Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo programming needed\u003c\/strong\u003e — standalone IR learning relay, works out of the box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal IR learning\u003c\/strong\u003e — learns any NEC, RC5, or compatible IR remote button code\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToggle \u0026amp; momentary modes\u003c\/strong\u003e — toggle for on\/off switching, momentary for pulse output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e250V\/10A relay\u003c\/strong\u003e — controls mains-voltage appliances (lights, fans, heaters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPDT contacts\u003c\/strong\u003e — use NO or NC for fail-safe designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded remote\u003c\/strong\u003e — ready to use immediately without sourcing a separate remote\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart home switching\u003c\/strong\u003e — control lights, fans, and appliances with IR remote\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTV\/AV equipment control\u003c\/strong\u003e — use existing TV remote to control auxiliary devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGarage door \/ gate control\u003c\/strong\u003e — IR-triggered relay for motor activation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAppliance timer\u003c\/strong\u003e — combine with timer circuit for scheduled IR-triggered switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessibility control\u003c\/strong\u003e — remote switching for users with limited mobility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY home automation\u003c\/strong\u003e — integrate IR control into existing smart home setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eHow to Learn an IR Code\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003ePress and hold the \u003cstrong\u003eLearn button\u003c\/strong\u003e on the module until the LED flashes\u003c\/li\u003e\n\u003cli\u003ePoint your IR remote at the receiver and press the desired button\u003c\/li\u003e\n\u003cli\u003eThe LED will flash to confirm the code has been learned\u003c\/li\u003e\n\u003cli\u003ePress the learned button to toggle the relay on\/off\u003c\/li\u003e\n\u003c\/ol\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use my existing TV remote to control this module?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The module learns any IR code from NEC, RC5, Sony SIRC, and most other common IR protocols. Simply teach it a button from your existing remote.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between toggle and momentary mode?\u003c\/strong\u003e\u003cbr\u003eA: In toggle mode, each button press alternates the relay between ON and OFF. In momentary mode, the relay is ON only while the button is held, and turns OFF when released.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I control 220V AC loads?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The relay is rated AC 250V\/10A, suitable for 110V and 220V mains loads. Always follow electrical safety regulations when wiring mains voltage.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1× IR Infrared Receiver Relay Module (1-channel, 5V)\u003c\/li\u003e\n\u003cli\u003e1× IR Remote Control\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991476687083,"sku":"\u003cnone\u003e","price":11.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ir-1-channel-infrared-receiver-relay-driver-module-5v.webp?v=1761630146"},{"product_id":"xy-j02-1-channel-5v-relay-adjustable-time-delay-6-30v-trigger","title":"XY-J02 1-Channel 5V Relay Module with Adjustable Time Delay — 6–30V Trigger","description":"\u003ch2\u003eXY-J02 — 1-Channel 5V Relay Module with Adjustable Time Delay\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eXY-J02\u003c\/strong\u003e is a versatile \u003cstrong\u003eadjustable time delay relay module\u003c\/strong\u003e that triggers a 5V relay after a programmable delay of \u003cstrong\u003e0.1 seconds to 999 minutes\u003c\/strong\u003e. With three operating modes (delay-ON, delay-OFF, and loop cycle) and a wide trigger input range of \u003cstrong\u003e6–30V DC\u003c\/strong\u003e, it's ideal for automation, pump timers, motor delay start, and any application requiring timed switching without a microcontroller.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Input Voltage\u003c\/td\u003e\n\u003ctd\u003e6V – 30V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelay Range\u003c\/td\u003e\n\u003ctd\u003e0.1 seconds – 999 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Modes\u003c\/td\u003e\n\u003ctd\u003eDelay-ON \/ Delay-OFF \/ Loop Cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating\u003c\/td\u003e\n\u003ctd\u003e10A \/ 250VAC, 10A \/ 30VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Type\u003c\/td\u003e\n\u003ctd\u003eSPDT (NO + NC + COM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator\u003c\/td\u003e\n\u003ctd\u003eLED (relay status)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Size\u003c\/td\u003e\n\u003ctd\u003e~48mm × 26mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eOperating Modes\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMode\u003c\/th\u003e\n\u003cth\u003eBehavior\u003c\/th\u003e\n\u003cth\u003eUse Case\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelay-ON (P1)\u003c\/td\u003e\n\u003ctd\u003eTrigger → wait delay → relay ON\u003c\/td\u003e\n\u003ctd\u003eDelayed motor start, soft-start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelay-OFF (P2)\u003c\/td\u003e\n\u003ctd\u003eTrigger → relay ON → wait delay → relay OFF\u003c\/td\u003e\n\u003ctd\u003eTimed pump run, light timer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Cycle (P3)\u003c\/td\u003e\n\u003ctd\u003eRelay ON for T1 → OFF for T2 → repeat\u003c\/td\u003e\n\u003ctd\u003eIrrigation cycle, intermittent fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose XY-J02?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNo microcontroller needed\u003c\/strong\u003e — standalone timer relay, works out of the box\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWide delay range\u003c\/strong\u003e — 0.1s to 999 minutes covers virtually all timing needs\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e6–30V trigger input\u003c\/strong\u003e — compatible with 12V\/24V industrial control signals\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e10A relay contact\u003c\/strong\u003e — switches 250VAC loads directly (pumps, lights, motors)\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eThree operating modes\u003c\/strong\u003e — delay-ON, delay-OFF, and loop cycle in one module\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With \/ Works With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino 5V relay control (use 5V relay supply, digital pin trigger)\u003c\/li\u003e\n\u003cli\u003e12V\/24V industrial PLC output signal (trigger input)\u003c\/li\u003e\n\u003cli\u003eWater pump timer (delay-OFF mode for timed irrigation)\u003c\/li\u003e\n\u003cli\u003eMotor soft-start (delay-ON mode to stagger motor startup)\u003c\/li\u003e\n\u003cli\u003eLED\/lamp timer (delay-OFF for automatic shutoff)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Pump Timer\u003c\/strong\u003e — delay-OFF mode runs pump for set duration then auto-shutoff\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Delay Start\u003c\/strong\u003e — delay-ON mode staggers multiple motor startups to reduce inrush\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrrigation Cycle\u003c\/strong\u003e — loop mode alternates ON\/OFF for automated drip irrigation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan Timer\u003c\/strong\u003e — bathroom exhaust fan runs for 10 minutes after light switch off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Automation\u003c\/strong\u003e — 12V\/24V PLC signal triggers timed relay output\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I set the delay time?\u003c\/strong\u003e\u003cbr\u003eA: Turn the onboard potentiometer clockwise to increase delay, counterclockwise to decrease. The LED indicator shows relay status. For precise timing, use a stopwatch to calibrate the potentiometer position.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can XY-J02 switch 220V AC loads?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The relay contact is rated 10A\/250VAC. Connect the 220V load to the NO (Normally Open) and COM terminals. Ensure proper insulation and enclosure for mains voltage safety.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the trigger input and relay supply?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003erelay supply (5V)\u003c\/strong\u003e powers the relay coil and module electronics. The \u003cstrong\u003etrigger input (6–30V)\u003c\/strong\u003e is the signal that activates the timer. Both must be connected for the module to operate.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× XY-J02 1-Channel 5V Relay Module with Adjustable Time Delay\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"MICRO","offer_id":46991482487019,"sku":"14:1202#MICRO","price":6.88,"currency_code":"USD","in_stock":true},{"title":"TYPE-C","offer_id":46991482519787,"sku":"14:350852#TYPE-C","price":6.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/xy-j02-5v-relay-module.webp?v=1761545095"},{"product_id":"dc-5v-12v-ne555-time-delay-relay-module-adjustable-timer-switch","title":"DC 5V\/12V NE555 Time Delay Relay Module Adjustable Timer Switch","description":"\u003ch2\u003eDC 5V\/12V NE555 Time Delay Relay Module - Adjustable Timer Switch\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eNE555-based time delay relay module\u003c\/strong\u003e provides an adjustable time delay from \u003cstrong\u003e0 to 270 seconds\u003c\/strong\u003e (depending on RC component values) before switching a \u003cstrong\u003e10A relay output\u003c\/strong\u003e. Powered from 5V or 12V DC, it is ideal for auto power-off circuits, delayed start applications, and timer-controlled switching without any microcontroller programming.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTimer IC\u003c\/td\u003e\n\u003ctd\u003eNE555\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e5V or 12V DC (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelay Range\u003c\/td\u003e\n\u003ctd\u003e0 - 270 seconds (adjustable via potentiometer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Output\u003c\/td\u003e\n\u003ctd\u003e10A \/ 250V AC (or 10A \/ 30V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contacts\u003c\/td\u003e\n\u003ctd\u003eNO, NC, COM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Mode\u003c\/td\u003e\n\u003ctd\u003ePower-on delay (relay activates after set time)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LEDs\u003c\/td\u003e\n\u003ctd\u003ePower LED + Relay status LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Size\u003c\/td\u003e\n\u003ctd\u003e~60 x 40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eOperating Modes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower-On Delay\u003c\/strong\u003e - Apply power; relay activates after the set delay time. Use NO contact for delayed-on switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower-Off Delay\u003c\/strong\u003e - Relay activates immediately on power; deactivates after delay. Use NC contact for delayed-off switching.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose This Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Programming Required\u003c\/strong\u003e - Adjust delay with a screwdriver; no MCU or code needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A Relay Output\u003c\/strong\u003e - Switches mains loads (lamps, motors, appliances) up to 2500W @ 250V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Delay\u003c\/strong\u003e - Potentiometer sets delay from near-zero to ~270 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO\/NC\/COM Contacts\u003c\/strong\u003e - Flexible wiring for normally-open or normally-closed applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Indicators\u003c\/strong\u003e - Power and relay status LEDs for easy monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAuto power-off for tools and appliances after inactivity\u003c\/li\u003e\n\u003cli\u003eDelayed fan start after engine\/motor shutdown (cooling delay)\u003c\/li\u003e\n\u003cli\u003eDelayed power-on for audio amplifiers (speaker protection)\u003c\/li\u003e\n\u003cli\u003eAutomatic irrigation timer\u003c\/li\u003e\n\u003cli\u003eCar accessory delayed power-off (dome light, radio)\u003c\/li\u003e\n\u003cli\u003eIndustrial machine start delay for sequential power-up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWiring Guide\u003c\/h3\u003e\u003cp\u003eConnect VCC\/GND to 5V or 12V supply. Wire load between COM and NO (for delayed-on) or COM and NC (for delayed-off). Adjust potentiometer clockwise to increase delay time. LED lights when relay is energized.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I extend the delay beyond 270 seconds?\u003c\/strong\u003e Yes - replace the timing capacitor with a larger value. Delay = 1.1 x R x C. Doubling the capacitor doubles the delay time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can this module switch 220V AC loads?\u003c\/strong\u003e Yes - the relay is rated 10A\/250V AC. Ensure proper insulation and safety precautions when wiring mains voltage.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1x NE555 Time Delay Relay Module (5V or 12V version)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"5V","offer_id":46991503524075,"sku":"14:1202#5V","price":5.12,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":46991503556843,"sku":"14:350852#12V","price":5.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/dc-time-delay-relay-module.webp?v=1761531778"},{"product_id":"aluminum-heat-sink-for-ssr-solid-state-relay-10a-100a-12v-220v-cooling-base-single-three-phase","title":"Aluminum Heat Sink for SSR Solid State Relay 10A–100A 12V–220V Cooling Base Single\/Three Phase","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003eThe goods only have the base, no relay\u003c\/p\u003e\n \n\n\u003cp\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S00762a1a693248c7b785fec5a740f7a5Z.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S9fc50692815c43b1b6b7a9bcb5a82aea7.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbf706ca131c24a96ae30cd232e3e373cM.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbbea6b2bf76343d6a016f3bbbdb89332w.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sc5f0cde286864ccc85156cc8d4f0b3d63.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S72d28aa5886c42708951d7ed9db7e9acW.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S8a0ec95788184daeb06c0328555b24a0K.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sdcc96353b77047fe965794107aac4751I.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S1f693b11328e406093b118cd52aa24494.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S11b4d3a4c5374e04b00cbcb6c302e0c2w.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sb29082a69f5043a0a981a21fa35cc1abS.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Se0e3e2cc0ba841a0a2e75cb729ca91afE.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S8e3a8a11a32b46cb992ed907ad110fcas.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sec8e88f1079646b4a9a4b611c4cd5813t.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"Single phase50black","offer_id":47723238949099,"sku":"5:144170022#Single phase50black","price":31.96,"currency_code":"USD","in_stock":true},{"title":"Single phase 50","offer_id":47723238981867,"sku":"5:200004763#Single phase 50","price":30.32,"currency_code":"USD","in_stock":true},{"title":"Single phase 70","offer_id":47723239014635,"sku":"5:200004182#Single phase 70","price":36.6,"currency_code":"USD","in_stock":true},{"title":"Single phase70black","offer_id":47723239047403,"sku":"5:200004183#Single phase70black","price":42.84,"currency_code":"USD","in_stock":true},{"title":"3bit 150","offer_id":47723239080171,"sku":"5:200000990#3bit 150","price":54.28,"currency_code":"USD","in_stock":true},{"title":"4bit 200","offer_id":47723239112939,"sku":"5:200000991#4bit 200","price":59.04,"currency_code":"USD","in_stock":true},{"title":"5bit 250","offer_id":47723239145707,"sku":"5:200005259#5bit 250","price":62.8,"currency_code":"USD","in_stock":true},{"title":"6bit 300","offer_id":47723239178475,"sku":"5:200661035#6bit 300","price":66.4,"currency_code":"USD","in_stock":true},{"title":"3phase 80","offer_id":47723239211243,"sku":"5:100014066#3phase 80","price":66.4,"currency_code":"USD","in_stock":true},{"title":"3phase 80black","offer_id":47723239244011,"sku":"5:100014065#3phase 80black","price":67.6,"currency_code":"USD","in_stock":true},{"title":"2bit 100","offer_id":47723239276779,"sku":"5:4182#2bit 100","price":53.12,"currency_code":"USD","in_stock":true},{"title":"3phase short","offer_id":47723239309547,"sku":"5:115781#3phase short","price":67.24,"currency_code":"USD","in_stock":true},{"title":"single phase big","offer_id":47723239342315,"sku":"5:201447486#single phase big","price":54.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/aluminum-heat-sink-ssr-main.webp?v=1770530697"},{"product_id":"1pcs-timer-relay-industrial-timer-relay-5v-12v-24v-timer-module-switch-with-lcd-display-relay-module-electronic-components","title":"1pcs Timer Relay Industrial Timer Relay 5V\/12V\/24V Timer Module Switch With LCD Display Relay Module Electronic Components","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style=\"font-size: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e*Wide Voltage Compatibility: This timer relay operates efficiently within a DC6-30V range and features a USB 5V connection, \u003cspan style=\"color: rgb(0, 0, 0);\"\u003einsure\u003c\/span\u003e versatility for various applications in industrial automation.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e*Precision Timing Control: With a timer range from 0.01 seconds to 9999 minutes, the LCD screen displays current settings and can store up to three profiles, providing high accuracy for critical timing tasks. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e*Advanced Flip-Flop Mode: The design supports both high and low-level flip-flop functions, enhanced by optocoupler insulation to protect against interference, offering reliable performance over 100,000 switching cycles.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e*Comprehensive Functionality: The timer module includes features like an stop button, automatic locking after five minutes, and a interface,insure it meets diverse operational needs while functioning in extreme temperatures from -40 to 85℃.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e*Versatile Applications:  for good for industrial process control, smart automation, and laboratory equipment management, this timer relay effectively integrates into various systems, enhancing safety and operational efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e*Product Name:\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003etimer relay\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e*Material:Electronic components\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e*Size:As shown\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e*Color:Blue\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003ePackage Content:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e1 x \u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003etimer relay\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003eNote:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003e1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.\u003cbr\u003e2. Please allow slight manual measurement deviation for the data.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se984095d25dd42e39e9a05a76d6a87bbr.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb88daa0b7e32476daf18fa9ea19762fcN.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb88daa0b7e32476daf18fa9ea19762fcN.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sadec09872bd2448ab16ef836c8bb823dR.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se0c9c48d2b374cf1b5bc2509725e75f4u.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa6fa1f8c37ca4ee49620986701ee1836L.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3f41391e2b6a46808c0adb6cea02d4cer.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S5f68fb5ff4884ddba88f1cfa619ed489k.jpeg\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"China Mainland","offer_id":47798449799403,"sku":"200007763:201336100","price":14.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/S3f41391e2b6a46808c0adb6cea02d4cer.webp?v=1770565246"},{"product_id":"single-phase-solid-state-relay-ssr-10da-dc-controlled-ac-single-phase-solid-state-relay-10a-dc-ac-relay-3-32v-dc-to-24-380v-ac","title":"Single Phase Solid State Relay SSR-10DA DC Controlled AC Single-phase Solid State Relay 10A DC-AC Relay 3-32V DC To 24-380V AC","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style=\"font-size: 20px;\"\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003e\u003c\/span\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003e\u003cbr\u003eEfficient DC to AC Power Control: This single-phase \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSSR\u003c\/span\u003e-10DA solid state relay allows you to safely and efficiently control high-power AC loads (up to 220VAC \/ 10A) using a low DC input voltage (3-32VDC), making it perfect for interfacing controllers with heavy-duty appliances.\u003cbr\u003eFast \u0026amp; Precise Switching Performance: Experience quick and stable operation with a fast on-off time of less than 10ms. This minimizes switching delays, \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eguarantee\u003c\/span\u003e a highly responsive performance for your applications.\u003cbr\u003eBuilt for Durability and Safety: Designed for long-lasting reliability, this relay features a robust construction with a flame-retardant shell, a thickened bottom plate, and high-temperature resistant materials for enhanced safety and durability\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003c\/span\u003e.\u003cbr\u003eClean Output with Strong Anti-Interference: Equipped with advanced suppression technology, this \u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003esolid state relay\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003c\/span\u003e ensures a clean and stable power output by effectively \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eprevent\u003c\/span\u003e electrical noise and interference. It's perfectly safe for use with sensitive electronic equipment.\u003cbr\u003eEasy Bolt-On Installation: With its compact dimensions (62x45x24mm), this relay is easy to install in various industrial and commercial settings using the provided bolt terminals. For loads above 10A, simply add a radiator for optimal thermal management.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003cbr\u003ePart Name:Single-phase solid state relay\u003cbr\u003eModel: \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSSR\u003c\/span\u003e-10DA\u003cbr\u003eColor:As shown\u003cbr\u003eMaterial:Plastic shell\u003cbr\u003eControl current: 3-35mA\u003cbr\u003eControl voltage: 3-32VDC\u003cbr\u003eOn-state voltage drop: \u0026lt;1.6V\u003cbr\u003eLoad voltage: 24-380VAC\u003cbr\u003eOn\/off time: \u0026lt;10ms\u003cbr\u003eAmbient temperature: -30°C to +70°C\u003cbr\u003eSize:62*45*24mm\u003cbr\u003eProduct weight: 0.1KG\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePackage Content:\u003c\/strong\u003e\u003cbr\u003e1*Solid State Relay \u003cbr\u003e\u003cbr\u003e\u003cbr\u003eNote:\u003cbr\u003e1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.\u003cbr\u003e2. Please allow slight manual measurement deviation for the data.\u003c\/span\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S13918092930c473483431bcdd222f34e8.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S62633503c2704073b5c3f8ccc79b2f2eW.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S034e5f2cdd12440b9b85923e978dc3160.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9f716e9b97324215b121d2aacffc3208y.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se47c162685ee4725b4fdace04cdba8061.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sda0b41c15aee48de961982685f798b6ar.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S187960b89eac490ba7e5d384f64f0998J.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Scd9afb7ff2f6490b913d5cb77703b43cU.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S86d2f117476646e9ba033702c7cd208d5.jpeg\"\u003e\u003cimg 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src=\"https:\/\/ae01.alicdn.com\/kf\/S3ca5025fc3df47558c0b4f0eb2fef6617.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf3d566599c004c919cf4d2f7f3ad2611t.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6e2c681dd972472e902b8f55051e1dc0Y.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6b4b1a5628624fe0a7114f76c20685a32.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se874f5b05aec44a09c26aea46fa2a91fo.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Scbb496adecfe4daca049d7852f774987U.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3ca5025fc3df47558c0b4f0eb2fef6617.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S29c8b263f65947c5828f260d2dfd5d16F.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S5cbb8b44c2bc4cff9695622cb76b6e9e2.jpeg\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"China 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class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style=\"font-size: 20px;\"\u003e\u003cp\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: times new roman;\"\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003e\u003c\/span\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 20px; font-family: times new roman;\"\u003e\u003cbr\u003eEnhanced Safety \u0026amp; Anti-Interference: Features full optocoupler isolation, effectively separating the control signal from the high-power device. This design eliminates electrical noise, prevents voltage spikes, and ensures stable, reliable operation for your sensitive microcontrollers like \u003cspan style=\"color: rgb(0, 0, 0);\"\u003efor \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eArduino\u003c\/span\u003e\u003c\/span\u003e.\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003c\/span\u003eCommon 3V\/5V Microcontroller Compatibility: Easily interfaces with a wide range of control boards, including \u003cspan style=\"color: rgb(0, 0, 0);\"\u003efor \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eArduino\u003c\/span\u003e\u003c\/span\u003e, \u003cspan style=\"color: rgb(0, 0, 0);\"\u003efor Raspberry\u003c\/span\u003e Pi (using 3V logic), and other 3V or 5V microcontrollers. 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It offers flexible connection options with solderable terminals or pins for both the input signal and high-power output, making it breadboard-friendly.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003ePart Name: FET Module\u003cbr\u003eColor: as show\u003cbr\u003eMaterial: Plastic\u003cbr\u003eOptocoupler Isolation: Yes\u003cbr\u003eControlled Device Power Isolation: Yes\u003cbr\u003eCompatible with: MCUs and \u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003efor Arduino\u003c\/span\u003e\u003c\/span\u003e Light Control Boards, 3V or 5V Signals\u003cbr\u003eHigh-Level Start: Yes\u003cbr\u003eLow-Level Stop: Yes\u003cbr\u003eLR7843: 30V\/161A\u003cbr\u003eScrew Hole Diameter: Two 2mm diameter screw holes\u003cbr\u003eHole Spacing: 8mm\u003cbr\u003eModule Size: 33*16mm\u003cbr\u003eWeight: Approximately 6.15g\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cstrong\u003ePackage Content:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e1*FET Module\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eNote:\u003cbr\u003e1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.\u003cbr\u003e2. Please allow slight manual measurement deviation for the data.\u003c\/span\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S87b9118a33bc4a5197a2b4dfe69f38dcI.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S629e496326474dcd9ba6307934e2e767B.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb19934c6ca374f6eba12dc3ae7052e101.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa1708e69232d4b0cb1e640c410d7ccbbt.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S87b9118a33bc4a5197a2b4dfe69f38dcI.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7adc427c1d814cb78edc76ae4b10fcd2d.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4bff218d5def4fe498caee86f1f9ff67N.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S630070d095c143dfacdd121c0845af53i.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdc183a7af88949c28ca79ce61cb1d5b6G.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4b446382367a429993e40e1a68776024e.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9dad9f1fe9a3485a80920be2408fd346A.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S23aa49dbc9fa4e9f86845f13973693cbt.jpeg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sfdc8e18a282e4a72b89f2d54202f65ffb.jpeg\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"China Mainland","offer_id":47798477816043,"sku":"200007763:201336100","price":1.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/S7adc427c1d814cb78edc76ae4b10fcd2d.webp?v=1770565271"},{"product_id":"normally-open-12v-time-delay-relay-module-with-adjustable-timing-for-turn-on-turn-off-switch-suitable-for-250v-ac-load","title":"Normally Open 12V Time Delay Relay Module with Adjustable Timing for Turn On\/Turn Off Switch Suitable for 250V AC Load","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: times new roman; font-size: 20px;\"\u003e\u003cbr\u003e*Made of high quality material, and practical to use\u003cbr\u003e*This is a 12V multi-function relay timer module with 8 time ranges shortest 0.1s most up to 1 hour.\u003cbr\u003e*You can set delay turn on or delay off. It  for protection against power reversal  for protection diode, better  for protection module.\u003cbr\u003e*Can be accessed by a large current load(250V AC 10A or 30V DC 10A).\u003cbr\u003e*Also, with delay adjustment potentiometer clockwise adjustment time longer.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003eElectrical parameter:\u003cbr\u003eInput Voltage: 12V\u003cbr\u003eQuiescent Dissipation: 13mA\u003cbr\u003eMaximum Power Consumption: 48mA\u003cbr\u003eRelay Load Capacity:\u003cbr\u003e250V 10A AC(2500W power AC)\u003cbr\u003e30V 10A DC(300W power DC)\u003cbr\u003eSize: 5.5×3cm\/2.16×1.18inch\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e\u003cbr\u003e1× 12V Delay Relay Turn on\/ Turn off Module\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cbr\u003e1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.\u003cbr\u003e2. 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Built with polycarbonate dust-proof enclosures and silver alloy contacts, these relays deliver reliable switching performance across millions of operations.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in AC 12V, DC 24V, and AC 220V coil voltages, with 2PDT, 3PDT, and 4PDT contact configurations, this listing covers the full HH series range in bulk packs of 10 units — ideal for panel builders, OEM manufacturers, and maintenance stock.\u003c\/p\u003e\n\n\u003ch3\u003eModel Selection Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHH52P\u003c\/strong\u003e — 2PDT (2 poles, double throw), 5A contacts, octal 8-pin base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHH53P\u003c\/strong\u003e — 3PDT (3 poles, double throw), 5A contacts, 11-pin base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHH54P\u003c\/strong\u003e — 4PDT (4 poles, double throw), 3A contacts, 14-pin base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHH62P\u003c\/strong\u003e — 2PDT with LED indicator and test button, 8-pin base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHH63P\u003c\/strong\u003e — 3PDT with LED indicator and test button, 11-pin base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHH64P\u003c\/strong\u003e — 4PDT with LED indicator and test button, 14-pin base\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCoil Voltage Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC 12V\u003c\/strong\u003e — for low-voltage AC control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC 24V\u003c\/strong\u003e — standard PLC output voltage, most common in industrial automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC 220V\u003c\/strong\u003e — direct mains control, no transformer required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Rating:\u003c\/strong\u003e 5A \/ 250VAC (HH52P, HH53P); 3A \/ 250VAC (HH54P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Material:\u003c\/strong\u003e Silver alloy (AgNi)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDielectric Strength:\u003c\/strong\u003e 2,000V AC between coil and contacts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Resistance:\u003c\/strong\u003e ≥100MΩ at 500V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Life:\u003c\/strong\u003e ≥10 million operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Life:\u003c\/strong\u003e ≥100,000 operations at rated load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperate Time:\u003c\/strong\u003e ≤20ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelease Time:\u003c\/strong\u003e ≤20ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e −25°C to +55°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Polycarbonate, dust-proof (IP40)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMounting \u0026amp; Socket Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-in design — compatible with PYF-08A (8-pin), PYF-11A (11-pin), PYF-14A (14-pin) sockets\u003c\/li\u003e\n\u003cli\u003eDIN rail mountable via socket (PTF-08A, PTF-11A, PTF-14A)\u003c\/li\u003e\n\u003cli\u003ePCB mount, screw terminal, and wire wrap socket options available\u003c\/li\u003e\n\u003cli\u003eTransparent dust cover included for panel-mount protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHH62\/63\/64P Additional Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in LED coil energization indicator (AC: neon lamp; DC: LED)\u003c\/li\u003e\n\u003cli\u003eManual test button for circuit verification without energizing the coil\u003c\/li\u003e\n\u003cli\u003eMechanical flag indicator showing relay energized\/de-energized state\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical 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DCx10 \/ 220V","offer_id":47798600990955,"sku":"241567442:9619657123#220V;5:200000991#HH63P DCx10","price":171.72,"currency_code":"USD","in_stock":true},{"title":"HH64P DCx10 \/ 12V","offer_id":47798601023723,"sku":"241567442:9619593645#12V;5:200005259#HH64P DCx10","price":175.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/hh-miniature-control-relays-main.webp?v=1771126991"},{"product_id":"dgb-63td-tuya-wifi-smart-switch-current-voltage-leakage-protection-metering-circuit-breaker-remote-control-wireless-timer-relay","title":"DGB-63TD Tuya WiFi Smart Switch, Current Voltage Leakage Protection Metering Circuit Breaker, Remote Control Wireless Timer Relay","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eIs Smart Device\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDGB-63TD\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eRated Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e220V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMini,Circuit breaker\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eNote ：This decive is not compatible with Home Assistant, please use the device in SMART LIFE APP\/ TUYA APP.\u003c\/p\u003e\u003cp\u003eWiring：Power must enter from the top and must be Live line + Neutral Line (L+N). Live line + Live line (L+L) cannot be used.\u003c\/p\u003e\u003cp\u003eWireless Type: Wi-Fi 2.4GHz Only，5GHz Not Support\u003c\/p\u003e\u003cp\u003eInstallation: 35MM Din Rail\u003c\/p\u003e\u003cp\u003eMechanical Life: Over 100000Times ON\/OFF Switch\u003c\/p\u003e\u003cp\u003eVoice Control by Amazon Alexa Echo\/Google Assistant\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eDGB-63TD Leakage Protection\u003c\/p\u003e\u003cp\u003eRemote on\/off\u003c\/p\u003e\u003cp\u003eTime control\u003c\/p\u003e\u003cp\u003eRelay last status\u003c\/p\u003e\u003cp\u003eVoltmeter\u003c\/p\u003e\u003cp\u003eAmmeter\u003c\/p\u003e\u003cp\u003ePower meter\u003c\/p\u003e\u003cp\u003eActive power\u003c\/p\u003e\u003cp\u003eOver voltage protection\u003c\/p\u003e\u003cp\u003eUnder voltage protection\u003c\/p\u003e\u003cp\u003eOver current protection\u003c\/p\u003e\u003cp\u003eOver power protection\u003c\/p\u003e\u003cp\u003eLeakage protection\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9f2e30a754514586a3d34ccea66cc24cJ.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S59ef548c42cc4fdfb1f34b43d0a86d8bM.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1eb10b93b5de4c47b6a93f00bada795dy.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd2d9fc172aeb4ea482ed0a2e999ec954Z.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S056cc5787aed4ad289bbdda09550053fF.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0f138f79fd864462aca03890c62d83f74.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1683b02cd322419db903af0839faaad0U.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0a9a3c2908454a2ab47c8c27ce75629bn.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S681e7dac896c411abdcbcf09e0d7d18au.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd10bb727eb554ba0a9a2a33a4503667aO.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S21b6fc1fb4ed49a0be9855e01365dbfcq.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S11dab411ab3248fcb408cea30414b4cdb.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1315d55ea126489ab5da720ec2d2fc5fQ.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"1-63A Adjustable \/ DGB-63TD","offer_id":47800825512171,"sku":"125:150#DGB-63TD;567:200003391#1-63A Adjustable","price":69.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/dgb-63td-tuya-wifi-switch-main.webp?v=1770948997"},{"product_id":"dc-12v-10a-rf-relay-receiver-433mhz-wireless-remote-control-ev1527-learning-code-transmitter-2-bottons","title":"DC 12V 10A RF Relay Receiver 433mhz Wireless Remote Control EV1527 Learning Code Transmitter 2 bottons","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003ePVC\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e433Mhz Wireless Remote Control EV1527 Learning Code Transmitter 2 bottons DC 12V 10A RF Relay Receiver\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e12V single channel receiving 433 frequency one [with shell]\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSingle-channel controller technical parameters:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e1. Working voltage: 12V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e2. Standby current: 8mA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e3. Working frequency: 433Mhz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e4. Coding type: fixed code, learning code\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e5. Receiving sensitivity -105dbm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e6. Output: 1-way unconnected switch (jog\/self-lock\/interlock can be set by yourself)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e7. Load recommendation: 10A relay (reservation should be reserved in use) recommended load \u0026lt; 90w, inductive load \u0026lt; 50w and not suitable for frequent start and stop\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e8. Output mode: electric shock output (can control AC, DC)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e9. Circuit board size: 34*31*16MM\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e10. Shell size: 42*39*26MM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S02f27adbba214f5fb6801df73202d4adA.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sab00f52cb64249969621eadd56137f390.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S11ac69b6d02148c88fb66426579bbf9aL.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa78dd8d5f6464fd78a854fb0b0701b4cH.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa9fcc2a6faca4a13866bdc36edf17b8a2.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S8b12a13f955c4f33b0643c6f532c4258Q.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S979f84e5d9964f44bafb3053261e6218a.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S705b5f9f3fb9457ca97df52b4d4d0617q.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S03fb5b3d0dda407f83831e32cff372e5T.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S43274af778b84b7b8ebf29f38c71b7e7M.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7484f5dd981640cc9b619eb844ff95488.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sad5f83442f754fecaa0fcd728f493d65F.jpg\" class=\"detail-desc-decorate-image\"\u003e\n\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"1pc \/ onesize","offer_id":47860381679851,"sku":"14:200004889#onesize;35:3454635#1pc","price":13.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/S8b12a13f955c4f33b0643c6f532c4258Q.webp?v=1771814473"},{"product_id":"4pin-5v-relay-sip-1a05-reed-relay-for-control-module","title":"4Pin 5V Relay SIP-1A05 Reed Relay for Control Module","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e\u003cp\u003eDescription:\u003c\/p\u003e\n\u003cp\u003eThe product is a disassembled part, not a new one. Please confirm before placing an order\u003c\/p\u003e\n\u003cp\u003eName Dry Reed Relay\u003c\/p\u003e\n\u003cp\u003eModel SIP-1A05\u003c\/p\u003e\n\u003cp\u003eVoltage DC 5V\u003c\/p\u003e\n\u003cp\u003eCurrent 1A\u003c\/p\u003e\n\u003cp\u003eDC resistance 450~550ohm\u003c\/p\u003e\n\u003cp\u003eContact Open style\u003c\/p\u003e\n\u003cp\u003eBody Size 1.9 x 0.7 x 0.5cm\/0.75\" x 0.28\" x 0.2\"(L*W*T)\u003c\/p\u003e\n\u003cp\u003ePin Number 4\u003c\/p\u003e\n\u003cp\u003eNet Weight 3g\u003c\/p\u003e\n\u003cp\u003ePackage Included:\u003c\/p\u003e\n\u003cp\u003e5 x 5V Relay SIP-1A05 Reed S Relay for PAN CHANG Relay 4PIN New\u003c\/p\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S40549a04b0d44789bf36b48bf41cd3ff9.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S714e8e2ee7634082b27c88b1d02941ce0.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc599953575a84782b375107b382c9ca2N.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4fbcce047fe64b68878d89e122db4b0eF.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc73561db0ee34242ac76e86a946c03656.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdf882cf6c1c5453498b1ec77640dbcbc3.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S314d5acf6dde467f87d8e7e44f13328fx.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd43d129bc49044f2aa483ddefece3431M.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd2d81a43e59644f5a59e1d93e7206199c.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S5834de30a61c48a4bc839d0e63176eacb.jpg\" class=\"detail-desc-decorate-image\"\u003e\n\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"Onesize","offer_id":47862885417195,"sku":"5:144170022#Onesize","price":15.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/4pin-5v-reed-relay.webp?v=1771993573"},{"product_id":"aluminum-ssr-heat-sink-50x125x70mm-solid-state-relay-cooling-base","title":"Aluminum SSR Heat Sink 50x125x70mm Solid State Relay Cooling Base","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eFeatures:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eBrand new and high quality\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eAluminum Single Phase Solid State Relay SSR Heat Sink Base Small Type Heat Radiator for 10A to 60A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eSize:50*125*70mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003ePackage Contents:1pc\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf7d0518028e34d7dbec5ba3007f10799n.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S432a6d25f76e46eea837f1cbc4ecb8f3N.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S7a28fc6b86bb4f79ab7cf30841daa04fV.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd3aab58f1e1744bf821b413da7860d27i.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S9b7063ad70f14f108fab69ee63c47c57y.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sfec1e568fa8c483594fdd53636ab4077B.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd13d17db1e9a4c9dbb3ff25a4acaeeafc.jpg\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\u003cbr\u003e","brand":"Keszoox","offers":[{"title":"One Size","offer_id":47868005908715,"sku":"5:144170022#One Size","price":21.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/aluminum-ssr-heat-sink.webp?v=1772076304"},{"product_id":"c61f-gp-ac220v-floatless-level-relay-level-controller-with-base","title":"C61F-GP AC220V Floatless Level Relay Level Controller with Base","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eProduct Name: Floatless Level Switch \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eModel: C61F-GP \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSource Voltage: AC 220V \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSecondary Voltage: AC 8V \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eContact Rating: 5A 250VAC (Resistive load) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eFrequency: 50\/60Hz \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eIndicator Operation : Two LED Use for Two Status \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eColor: As Picture Show \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eMaterial (External): Plastic, Metal \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSize: 5.7 x 4.9 x 4cm\/2.2'' x 1.9'' x 1.6'' (L*W*T) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003ePackage Content \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e1 x Floatless Level Switch+1 x Base \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa3d8a3f7cd57462d9e78ff08b9035f80V.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sfe5eeab9dad54af39da5787199b30120S.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6458ddcff0af4b7a81edfa1f2bed8632H.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S17d04bc6ec4b48f78b74666698477623W.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S30c96124435f490f8ba8f511ed7d826fR.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sabfe9fdb1cd747e6a4f34eeb8979ce3cc.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S822ebcc6bd3d46fd8f0ff7b80220bf0bc.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdd177407ec4c4238944445ff9fdad05fo.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S24a86dbd01de48c28f0d8232815dea85d.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa2dd87a5a01543e093d54cfbde92e91a6.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S5a0e164f308c4ecebac01d449d0a04b2v.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2e5ee4ddea8e4f79b4fac5db738398d92.jpg\" class=\"detail-desc-decorate-image\"\u003e\n\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"One Size","offer_id":47873820000491,"sku":"5:144170022#One Size","price":27.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/c61f-gp-floatless-level-relay.webp?v=1772160252"},{"product_id":"new-dc-12v-1-channel-wireless-relay-remote-control-s-receiver-with-transmitter","title":"New DC 12V 1 Channel Wireless Relay Remote Control S Receiver With Transmitter","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eABS\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSpecification: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eWireless Remote Control \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eMaterial: ABS Plastic \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eBattery:23A Battery (not included) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eOperating voltage: 12V \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eFrequency: 433MHZ \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eCurrent job: 9 ~ 12mA \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eTransmitting power: 10-15mw \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eFrequency deviation: ± 0.2MHz \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSize (approx.): 58x38x15 (mm) (LxWxH) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSuitable for all lights. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eEasy to install and simple to use. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eEnergy-saving and environment protection \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eFast response and long control distance. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eApplication: Garage Door, Household Electrical Appliances, RGB lights \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eStable performance and strong to resist interference, not obstructed by walls and furniture! \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eReference distance: 150 meters (This is the theory distance in open environment without interference, practical application due to the interference environment and decreased) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eCharacteristic: Double control(wall s function and control function),safety(the shell applies to the fire-retardant material),easy installation(just wire connection) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e1 Channel Wireless Relay S \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eChannel: 1CH \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eOutput Current: 10A \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eInput Voltage: DC10-14V \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eWorking Voltage: DC12V \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eStandby Current: ＜5MA \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eRF Frequency: 433MHZ \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eReceiver Sensitivity: \u0026gt;90dBm \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eDimension (approx.):3.5*3*1.6cm \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eRF Working mode: Super heterodyne receiver \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eRemote Control Distance: \u0026gt;100 meter(In open environment) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eDecoding Way: MCU Software decoding \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eCan store the number of remote control:50 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSupport remote control type: Fixed code, learning code \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eWiring Method: Fixed wiring terminal \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eRated load:10A 250VAC \/ 10A 125VAC, 10A 30VDC \/ 10A 28VDC \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eOutput: Normally open, Common, Normally closed \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eMultiple working modes: (Jog\/Non-Latched ,inter-lock\/Latched ,self-lock \/Self-Latched) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eWorking\/output way: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eJog\/Non-Latched: Press one button is Working \/ON. Loosen your finger on the same button is Stop\/OFF. One channel s need one buttons remote control. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eSelf -lock\/Self-Latched: Press one button for one time is working\/ON. Press the same button again is stop\/OFF. One channel s need one buttons remote control. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eInter-lock \/Latched: Press one button is working\/ON, press another button is stop\/OFF. One channel s need 2 buttons remote control. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eDelay: Press remote control relay pull-in, release the remote control and begin timekeeping, after 5s,10s,15s will automatically close the relay \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003ePackage Included: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e1x 1 Channel Wireless Relay S \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e1x Wireless Remote Control (not include the battery) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eNote: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eIf want to change the modes, need delete the present learning mode(Press the white learning button on the control panel eight times), and then re-learn the new features \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003ePlease allow minor error due to manual measurement. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: Verdana;\"\u003eDue to the difference between different monitors, the picture may not reflect the actual color of the item. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1e65afd0108f44809d166bb0e46e154av.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa007510511c54553add7d1e1eafa7397b.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd76ffe3b9253472d894697e09dac7907l.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S341dbe8576cb4db9b55c79a2d8ff1896y.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd83744ef4e2646f78df998bda30776818.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S5f25bceb1c9d4323927790edd3d6cdddL.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S85948945d05b499db3bce23d5b937337a.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa46c265911434be98d21fcb829980638z.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S8406dd12126647d9bca19f6b8909fbfcm.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7388382f4f0c4fa78fcd85a379d5ca4fA.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf092a8033ed24d8fa265fcdb2c69357ae.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb9b827274942457b94cd103a9c41a2f6E.jpg\" class=\"detail-desc-decorate-image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S519e56fbffea4e8482d1c19c043af4fd6.jpg\" class=\"detail-desc-decorate-image\"\u003e\n\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"0 \/ One Size","offer_id":47878460178667,"sku":"14:200004889#One Size;35:3454635#0","price":20.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Sd76ffe3b9253472d894697e09dac7907l.webp?v=1772169674"},{"product_id":"new-industrial-solid-state-relay-ssr-40a-with-protective-flag-ssr-40da-40a-dc-control-ac","title":"New Industrial Solid State Relay SSR 40A with Protective Flag SSR-40DA 40A DC control AC","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSolid State Relay Controller\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage Size\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1cm x 1cm x 1cm 0.39in x 0.39in x 0.39in\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage Weight\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e0.09kg 0.20lb.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTheory\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSolid State Relay\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUnit Type\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003epiece\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUse\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGeneral Purpose\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eDescription： \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eModel:SSR-40 DA \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eOutput voltage: AC 24-380 V. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eOutput current: 40 A. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eInput voltage: DC 3-32 V. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eControl Method: DC to AC. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eMounting Method: Bolts fixed. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eSize:6.5 cm x 4.5 m x 2.2 cm - 2.56 inch x 1.77 inch x 0.87 inch. \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eFeature: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003e100％ New Brand and high quality \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eLong service life and high reliability \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eHighly reliable, compact size designed to offer users maximum simplicity \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eFast switching \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003ePackage Included: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003e1 x Solid State Relay Controller \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eNote: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003ePlease allow 0-3 cm error due to manual measurement. pls make sure you do not mind before you bid. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px;font-family:Verdana\"\u003eAnd due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S24459c8540ca4ad0a0e4deae84df0877D.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S01db47459277488e805a250e35a19c97C.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sb879b03670ec4387af0d0dbb62f4c774a.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S16aeafb8f76040e1a5d6ef56eae52051M.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd3ca249029064e069a7c65e32cb5f922N.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S604e0eb8382e455fb6c83039490a87b5g.jpg\" slate-data-type=\"image\"\u003e\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S71c65ef2e6674ef39568b8d984cf2307c.jpg\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\u003cbr\u003e","brand":"Keszoox","offers":[{"title":"SSR-40DA ...","offer_id":47878466175211,"sku":"5:144170022#SSR-40DA ...","price":23.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/Sb879b03670ec4387af0d0dbb62f4c774a.webp?v=1772169814"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/collections\/image_6860f364-721c-4ce2-9708-470fb7eabf56.png?v=1776143418","url":"https:\/\/keszoox.com\/collections\/relay-modules-arduino-electronics.oembed?page=3","provider":"Keszoox","version":"1.0","type":"link"}