This is a light kit that is plug and play so installing it is easy. It comes with two ballast, two high and low beam High-intensity discharge lamps, and housing. The find a place to put the ballast because of the lack of space and the simple fact fact that my lights flip up and down. I stuffed mine inside the of the light cover where the light housing sits because I didn’t want to drill any holes in my boo. They are bright as hell, I like them, but I don’t recommend them because I do not want anyone blinding me, LOL. I got the lights from 101propose for a good price. Check the store out.