I'm going to be the bad guy. when you put a hood on a bunch of low watt cfl's all you do is trap heat. now the math. you need to keep a cfl 2-4" off the plant to use them for growing. lets say what your using has 100% reflectiveity. It doesn't by the way more like 30-40% at 100% you would only get about 50% light off the reflector. I do back off my statement that the reflector does no good with low watt cfl's. It does have some value. but the heat build up is a much larger neg value. cfl light is great I use it myself. I know my expalatoin sucks but if you reserch how light works I think you'll figure out what I'm trying to say.