Quoted from Shredso:
I'm powering my pi this way from the Ender 3 and I get the lightning bolt for under voltage. Voltage measures fine though, any thoughts?
Also, I'd like to see some pics of the lights you did, I've been thinking about adding some for the camera.
Lighting bolt in the Octoprint web gui? I ran a 14 hour print the other day and didn't see anything. I set my voltage to 5.1 just to make sure it was getting a solid 5v.
Here's the thingi file I used. I printed 2 of them and cut 1 to length (overhangs a bit): https://www.thingiverse.com/thing:2981368
Just buy a strip of 24v 5050 leds add wire length and run those right to the PS down the right hand channel and up into the PS.