ok i have 2 plants a about 8 cfls and can put the others back in when ever i get a new timer...but yes dont get crappy lighting it will be very small yeild and will be a waste of time...just trust me and get about 8 to 12 cfls for 3 to 4 plants...youll have better results... unless you want to buy mh or hps lights more money but soo much better...heres a link,...search the site for other lights like 400 watt hps id recommend a 250 watt tho less heat and what ever...but i think you have to have a special ballast for it....

100 Watt HPS