dude you guys are making it so complicated, i got a 35 plant grow room running in my basement...got them under 3 400watt hps ...dude i have a master set-up...i could grow up to 50plants if i wanted...and i spent less then $350...that includes pots,soil,lights(they where free),everything. I even bought a cloner tent...actually i modified a refrigerator and made it to a cloner...this is a professional setup, better then the ones ive seen with $4,000+ budget....and i made a better one...with less then $350...ow and i forgot to mention, im only 14years old.. xD...quit making it so difficult...its just a weed.. ow and CFL's work great for seedlings and clones by the way...