Headlight wiring harness

Hey guys! This is my first mod on my first car I'm attempting to do. I'm not really big on cars so bear with me. I just bought these
Headlights from ebay. I didn't know how to install them so I looked a tutorial up on youtube. The tutorial said if I have LED, CCFL, lights I need to change the wiring a bit. I looked at the general wiring guide and I can say I think I understand how to do it. My only question is what are the wire set up on the wiring harness? I know the ground is black, but there are 2 other wires. The video shows 1 is the turning signal and the other is something else. I don't own a volt meter and would like to know this before opening the headlights up. Thanks in advanced!