cfls throughout grow is possible ive seen it done and the plants come out looking decent, however using a hps of some sort will deff give you a better lookin plant which means better yeild in the long run (use if you want optimal growth/flower). both posts above should be looked at too =) cfls are more challenging to flower and im sorry i didnt get the whole "a cfl" thing thank you green, and you deffinatley can not do much of anything with "a cfl", but multiple is a for sure thing =) i deff suggest maybe picking up a book and educating yourself a lil more on the cultivation of Mary Jane youll thank yourself (george cervantes, ed rosenthal both good authors, "ask ed" is a good one), youll learn more from books then people with opinions however youll learn some secret ways to do things or maybe alternative methods that are cheaper or even a short cut on this website and its a great place to learn as well. well happy grows it Smoke =One.