I stumbled upon this blog this might help you find your answer if you click on the links on the left of the page it will take you to suppliers for more info. http://growingwithledlights.blogspot.com/:leaf:
I found this when i was researching and it was very informative i recently order a few lights and was very impressed the plants grew at least twice as fast as any other light i used i found them here :arrow:Super GROW with LED LIGHTS
These are the newest lights for growing and most effective my plants grew 3 times faster and it cost less to operate than my old lights i found them here
:arrow:Super GROW with LED LIGHTS