The most powerful model is 500watt but only draws 250 and is about 20 times brighter than a HPS 600watt.

Try to make sense. A 500 watt light draws a minimum of 500 watts.

Twenty times brighter? Do you just make stuff up? :wtf:
RackitMan Reviewed by RackitMan on . Drowning in conflicting plant graphs - help! (LED) Still trying to design my LED light through clear understanding and not just mimicking. There is one photosynthetic response curve that shows yellow light has more effect than blue light and that green, while lower, is almost as useful. Other articles say green light may stunt plant growth and that yellow is not much more useful (despite the huge success of HPS). Then there is the photosynthesis action spectrum showing that violet/purple light (400nm) has the highest absorption peak Rating: 5