I'm using 7x23w CFL, thinking about putting a warm white LED strip in there as well. My spacebucket is wider than the average so the lights are arranged as a ring. I used a .35A brushless pc fan on 12v as exhaust to suck out the warm air. It was loud but it worked superb. Intake was simply a hole, next grow I'll put a dust screen on it. The most surprising thing about this grow was that although I used rather ghetto techniques and resources, I ended up with product that's comparable with stuff that sells for 10 euro a gram at the coffeeshop.