I guess they work... but to compare to an hid setup, well, there's no comparison, not even close. I like cfl's for seedlings, but then it's straight to the hps
Good, ur gonna need em. Looks like u got the daylight cfl on it already, get more of those. For my seedlings, i like cfl's, I get 4 lights per sprout and keep em close and they get bushy as shit. Be sure u got the temps under control.
Depends on what light ur usin. U can use hps all the way through if u want. If ur goin cfl, u want daylight for veg, soft white for flowering in the highest wattage u can get.