Dsitance and amount of light is the biggest step for growing with CFL's and floro's. I know that there are huge debates out there about using CFL's & floro's for the whole grow. Most people do great when it comes to vegging but when it comes to flowering time, a lot of people are dissapointed. Flowering with cfl's & floro's is not much different than flowering with HPS. Only difference is, the HPS penetrates further from the light source which means you don't need much side lighting, if any. A lot of people grow from above the plants only and that is where the CFL & floro growers make mistakes. CFL & floro grows should penetrate the plant from all sides if possible and as close as possible (CFL's do burn but haven't seen a floro burn yet). I have seen CFL & floro grows turn out just as good as HPS grows, if not better and of course less lumens and watts. It all depends on distance and amount.

I have seen 467watts (34,XXX Lumens) of CFL's & floros combined to make the goodies and amounts you see in magazines, no lie, it can be done!!!
jon420 Reviewed by jon420 on . Answers about CFL, HPS, How Much Light... Although I'm still kind of a new poster, I keep seeing a lot of the same comments--many of which are answered an Dr. Khronik's excellent El Cheapo Guide to Lighting. But there are a few things I'd like to add in regard to watts, lumens, cfl, hps, and efficiency and how much light you need. Maybe this should be stickied? Watts have nothing to do with light or growth. Watts measure how much power a light fixture uses to produce light. You can tell how efficient a light bulb is by looking Rating: 5