This LED COB lighting portable is easy to assembly, you can found much parts on online shop.
you can built this simple project for multi purpose portable lighting applications, powered with parallel 2x li-ion 18650. its portable and not too heavy on the hand grip.
in this project, i use step up dc converter module as a cob led driver. its very bright when DC converter outout is set to 12 Volt to powering COB LED, but this setting generate much heat if working for long run.... so for long run applications with this setting, its need adequate heatsink.
suitable for ie: camera lighting, headlight, etc.
for camping or emergency lamp, light intensity can be reduced. so it can use more lowering voltage setting,
ie: 11 Volts output from DC converter for saving power and generate less heat.
you can see this project at video on Youtube, click on image below:
part list for this project:
DC-DC step up converter module,
product link
12 Volt COB LED Chip,
product link
2x Li-Ion 18650 battery @2000 mAh or more,
product link
parallel Li-Ion holders,
product link
PCB, mini switch, cables and screws
if you interest to buy parts, you can see at product link above.
this project is suitable for:
COB LED flashlight
LED light portable
camera lighting
emergency lamp
outdoor, workbench, and camping
headlight (need custom mods and reflectors)
portable COB LED downlight (need reflectors)
portable COB LED flood light
tips if you built this project:
use high capacity li-ion (high mAh) for better long working performance
always be carefull and avoid short circuit, short circuit may cause burn or cable fire
replace all battery from holders if you see or smell burn, check the wiring cable
add enough heatsinks if COB pad generate much heat
add some reflectors if necessary