I am planning on getting a good LED grow light, since I have been hearing the new COB ones produce superior flowers and tastes and smells. Is this a good one? Suitable for my 2x2x5? 300W Led Grow Lights - Full Spectrum by PRAKASA® Similar ones appear to be all over ebay, German or Chinese made, and the cob ones, they all seem to be about the same price. I'm guessing it's just the same COB lamps, and that is the main cost. This is meant to be superior to traditional lighting isn't it?