Yupp, read all about it and seems really basic, I just have 2 questions.I agree with grouch. Throwing it together yourself would be about 1/2 the price.
Cobs are the future of lighting...try to find a user that's unhappy with their cobs. Just check out growmau5's diy videos about COBS on youtube. I'm on my first run still with my new cobs, but I'm on track to break several personal harvest records.