To answer your question, TWO CFL bulbs will NOT be sufficient lighting for you plant(s). Mybe a minimum of 4 to 6 23w CFL's, (daylight for veg warm for flower) Even more. You should be able to pick up a pack of four 23w CFL's at Wal-mart for $6 or so. sometimes even the dollar store by me has 23w bulbs. I hope this helps you! and good luck!