wow, 2-4 1000W hps in 15sq feet of space.no offense but it looks like your biting off more than you can chew, get like 2-4 1000w hps instead of cfls, your yield will be pitiful compared to what hps would do. the main reason people use cfls is cuz of heat and space issues, which you dont appear to have,
errrr, i thought it said 35sq ft, my badwow, 2-4 1000W hps in 15sq feet of space.
you can sit in there and inhale the smoke as they burn up