all you'r specs are only length and width wheres the height?
this is a three dimensional world isnt it,you gotta splain it to me lucy, cause i dont know how you figure all this without height being a factor, or distance from the plant.
so please add that in your formula so use newbies can figure it out .
thanks
fiddyonefiddy Reviewed by fiddyonefiddy 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