/diy/ - Do It Yourself

>light #2
Ok so this project I’m using this red lighr as a base. Got 3 of those little ~2.5” LED strips, wired them in parallel, attached them to the face for extra brightness. Got a dimmer switch, but that cunt gets really hot so I think that plan is out and I have to find a PWM deal or use the regular on-off switch.

Ripped out the AAA batteries, installed Li-Ion. Cheap power bank provided the USB charging port and protection for the battery.

My issue: Same shit happened when I ripped apart the other power bank- when I had the power bank all together, it powered the LEDs fine. I rip it apart, get the board off, wire from the board straight to the light, and it will power a small light fine, but then it will flash and shut off like an overcurrent protection when hooked up to the bright light. What changed? Could a shitty soldering job or connection make the light pull more amps?

There is also some sort of switch on that board that puts out 2.2V when nothing is plugged in, then the full 4V+ when a USB is plugged in. But since I ripped that USB connector off, I need to figure out how to wire it so it puts out full voltage when the light is on. Might put a 3-way switch so it goes from 1:off to 2:2.2V—>4V to 3:lights on.

>update
Just found some power banks with a 2.1A output so I’ll tear that apart when I get home and see if it holds up.