Automotive LED Strips as case lighting? Need thoughts/experience.

Frizzle Fry

Honorable
Nov 12, 2013
6
0
10,510
Just finished my most recent build and I've been told I need glowy crap to show off how clean and nice looking it turned out. While wandering the local (national) automotive store I came across some nice 14" self-adhering LED strips in various colors for about $10. Yes, I know DIY is cheaper, but I have a giftcard and they're... there.

Anyhow my plan was to just splice them to a 4-pin MOLEX adapter and attach them directly to my PSU, leaving them on as long as it's powered. Then I read some people had spliced them to 3-pin fan connectors successfully, but couldn't find more info. I have a 5-channel fan controller (0%-50%-100% toggle switches) and I'd love to be able to turn the lights on and off as I please.

Does anybody have experience with this? Can it be done? Should it?
 

jeremyp79

Distinguished
Both are 12 volt, direct current systems, so it should technically work. But instead of splicing them directly into a 4 pin molex, try to adapt them to a fan style plug, then your 0% on fan controller should turn lights off. As for the wiring, just google fan wiring, and find out which wire is hot and which is ground, thats all you should need for the LED.