opie the only link I can give you is to go to your local magazine shop and purchase this months issue of Hightimes magazine.
i dont have it in front of me but they do three separate grows with the UFO compared to a 400mh, a 400 hps and a 600 hps. and they CLAIMED that it produced around the same as the 400 hps. That is all i know. maybe you can get it at there site

Doughboy
SnSstealth Reviewed by SnSstealth on . LED growing- An instructional grow log trying this again. growing jack herer x bubbleberry in pure LED. these plants wont see any white light from seed to bud. tried posting pics once...so here we go again. questions or comments gladly answered. Dont think its been done quite like this before. ;) wish me luck! whiskeytango SnSstealth Rating: 5