DC 3.7-5V Double LED Light Board with Switch DIY Lamp

$7.21 USD

~~$12.36 USD~~ $7.21 USD

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DC 3.7–5V Double LED Light Board with Switch — DIY Flashlight & Lamp Module

A compact double LED light board module with an integrated on/off switch, designed for DIY flashlight, desk lamp, and portable lighting projects. The module operates from a 3.7V LiPo/Li-ion cell or 5V USB power supply, making it compatible with 18650 batteries, LiPo packs, and USB power banks. The double LED configuration provides balanced, even illumination for close-up lighting tasks. The integrated switch allows direct on/off control without additional wiring.

Technical Specifications

Parameter	Value
Supply Voltage	3.7V – 5V DC
LED Count	2 (double LED)
LED Type	High-brightness white LED
Switch	Integrated on/off switch
Compatible Power	3.7V 18650 / LiPo, 5V USB power bank
PCB Size	Compact (check product images for dimensions)
Certification	RoHS

Typical Applications

DIY Flashlight: LED light board for building a compact DIY flashlight using an 18650 battery and a 3D-printed or custom enclosure
Desk Lamp: LED module for a DIY USB-powered desk lamp or reading light
Portable Lighting: Compact LED light module for portable battery-powered lighting in camping, emergency, and workshop use
Maker Projects: LED light module for Arduino, ESP32, and Raspberry Pi projects requiring a simple, switchable light source
Model & Diorama Lighting: Compact LED module for scale model, diorama, and miniature lighting effects

FAQ

Q: Can I power this module directly from a 3.7V 18650 battery?
A: Yes. The module is designed to operate from 3.7V (nominal 18650 cell voltage) to 5V. Connect the 18650 positive terminal to VCC and negative to GND. Add a BMS protection board for overcharge and over-discharge protection.