Im really new, but this is the info i could give you about cfls. At you're hardware store the strongest you cuold get is like 42 W, but you can get them bigger at hydro shops. idk if thats what you mean, theres also the Ks, like 6300k for veg and 2700k for blooming. Im using Cfls atm, and i know you got to keep the light as close as you can to the plants without burning the leaves, because the light doesnt penetrate very well. Mine are 4 weeks old on sunday, and up until yesturday they had 4x 42W V for 3 plants, about an 1nch away from the closest leaf. (1 directly on top of each of the three, then 1 giving some side light inbetween the 3. They seemed to do very well with that much light, yesturday i set up my lighting rig so they have more light now, 9 Cfls 42 W Cfls.
Oh also, i heard even though 6300k is better for veg, its nice to throw in a 2700k for every 3 6300k you use, to give your plants a diffierent spectrum. I dont know how truethful this is, by i heard it from a few sources who seemed well educatied enough.(at least more than me)