Pretty new myself and from what I have read anything under 30w-105W is not worth the time or effort (So get rid of em) And weak lights make for light airy buds. Yes CFL is Compact Florescent good price here Light bulbs, Rope Lights, Halogen and Fluorescent bulb - 1000-Bulbs - The Light Bulb Superstore. You will need cool whites for vegging and warm whites for flowering. Correct me if I am wrong I am pretty new but I have been doing LOTS of reading