I have this same issue, I think it came out last month. But a lot of people have been saying its soo stupid and inefficient to use led grow lights, but the article shows you can definitely grow good bud with them. Ive been doing a little research on this because I thought it was too good to be true; think about a grow room without heat proplems, and without electric bill problems, and its supposably grows better bud!? my only reaction was, wow. Ive read some forms where some guys were getting some pretty decent yeilds using only leds on numerous occasions, yet led growing is always "pushed to the side". I do understand why though, they're expensive as $hiit.