I grew three plants under two 15w cool whites, and two 25w CFLs, this was only for the vegetive stage though, during the vegging they grew really quickly too. But now i have them under a 250w HPS, and i took a cutting yesterday and put it in a 'gel2root' tray thing, so i am hoping that works. You could grow with CFLs all the way, but you would need an army of them. Would it be possible for you to veg your plants, then put them outside, i think that might be the best option for you.