I've never grown before, and in my situation it would be a little hard to get a decent amount of CFL's to power a cab. I found a sealed LED light bulb, it looks like it has 3 main LED's that power the light. The only specs I have on it is its 7 watts, with a 200 lumen output. I looked up the light and found the same one on amazon, which is this http://www.amazon.com/74439-7-Watt-200-Lumen-Lighting-Directional/dp/B001NP8N9G Its at 3000k which is what I want, I plan to be growing 12/12 from seed. Only real concerns are how many other bulbs do I need to maintain a 12/12 grow.