Well I first started with one of those Gro-lux $10 Lights from wal mart at first... It worked for a bit... But I hapened to get A bigger florescent setup, 4 4foot bulbs... Eco lux or something, anyways, so I stopped using the Cheap Lights. My Friend found a 300 watt Cfl bulb for 15$ at home depot and its growing his 3 plants fine right now, they're Less than a foot high though. But Yeah good luck!