we used 3....the room wasnt half full, I can have 1kw HID in there, but if there are only a few plants, at 2ft tall, they still wont harvest too much, better if SOG, but still not too much more...and the plants were all 2ft tall and a few 18"....i appreciate your opinion, but Im not selling these lights, so i dont really care if you buy them or not...this was just an experiment to see if LEDs could grow quality nug...It was also a jack herer cross...which is not a good SOG plant yield wise...si strain had something to do with it...
again I am not selling these lights by any means, they were just the best to use for the experiment...I fully appreciate your opinion, but look at all the facts before passing a judgement...
I am satisfied with the results, and thats all that really matters, right?
WT