Discover three innovative DIY hacks in this video! Learn how to make a compact LED flashlight using a pen and coin cell ...
You won’t find [Antoine] stumbling around in the dark. He just finished working on this LED flashlight which draws power from a super-capacitor (translated). He ...
It’s now possible to source chip-on-board LED modules that have huge light output in a simple, easy to use package. However they can have major power requirements, and cheaper modules are also ...