LED lighting – Cordless COB LED light for 12h @ 366lm

Get off the grid and cut the cord

How to drive a high-CRI COB LED from a rechargeable 11,1V Li-Ion battery for 12 hours at full brightness. You will learn to understand and build one of four high-power high-CRI LED set-ups for portable cordless LED lights or lanterns.

Length 2:11

Battery powered high quality LED lighting is used on balconies and terraces, in gardens and parks, on outdoor and hiking trips, and on restaurant tables – anywhere where cables are a nuisance, limiting freedom of use. The set-up shown here can be further enhanced with flicker-free PWM dimming with any µC (unused white cable from the CC-PSU).

You will find the list of parts, BOM and wiring schematic at GitHub.

You may also want to learn about LED lighting technology basics here.