i have looked at almost every known maker i could find and unless you spend some really big bucks you are wasting your money...most LED lights use only 1w diodes and the price will vary with the spectrums they use.

my lights are 150 watts each and $450 and the manufacturer says they can be hung as high as 13' above the plants making 100 square foot coverage but am i going to use them that high? no way so your coverage will vary on how strong you want your light to be!

there are a few LED bulbs on ebay that will work for growing and are cheap but i would not use the lite brite style of LED panel...jmo!:jointsmile: