roof Lights

hey guys i just went to pick up some lights for my truck at this store... they had a rack to put on the roof of my truck with 6 lights on it its used but whatever just had to have it ... now i dont no how the mounting of it is going to work, but i just want to no if anyone knows how to wire it up i was thinkin of have 1 or 2 switches in the truck to turn them on ... uf i could do it myself that would be great or might have to bring it in to have it installed anyone with comments would be great thanks