To be honest man, through a few 5500 or 6500k CFL 23W in there for veg and you will be great. Cant tell ya on the car HIDs, but give em a shot, then we will know! Check out any of the LED grow logs and see me pulling my hair out for a few months. But now there is definitive info on pot and LEDs....Maybe you stumbled on something. But then again, if they did that good a job, wouldnt someone else have grown with them by now? Just throwing devils advocate shit out.
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