H1 LED Taillight Conversion
 

I purchased LED taillights online. They have 4 wires (black, white, red and yellow). The H1 currently has 3 wires. The yellow wire on the new lights I got is for reverse. Does anyone know how to wire these to work with a H1?
https://cimg1.ibsrv.net/gimg/www.hum...6f7da5a390.jpg
https://cimg2.ibsrv.net/gimg/www.hum...518a547206.jpg

It easy
 

One wire is for brake lights
one is for running lights
one is for back up light
that the rigs 3 wires

one is ground

you will need a diode on brake lights to confiscate for the LED light. It’s basically a ground. Be careful where you place it because your diode does get hot.
https://cimg1.ibsrv.net/gimg/www.hum...6f7da5a390.jpg
https://cimg2.ibsrv.net/gimg/www.hum...518a547206.jpg[/QUOTE]

maybe you can find something here Hummer Knowledge Base