I use 9- 40watt CFl's at the 2700 range, for Veg, and Flower. My space is 72" L X 32" W X 48" H. Everything seems to work fairly good. I get ounce or two from each plant. Do I need more light in that space? Growing 3 plants at a time.
Hotshot123 Reviewed by Hotshot123 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