MIGrampaUSA
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So 1000 watts of led I will be able to do more then a 5 by 5 area in this case ?
Not significantly more no. You could spread out the boards and get a bit more space covered but that is about it. Others might argue but I base that on 35w per ft sq. My lights have dimmers so 960w of quantum boards is perfect (for me).
yes.
PPFD of a HPS is around 1.2-1.8?
PPFD for LED can be up to 2.0 or more
Depends on bulbs/diodes but LED's are alot more efficent.
480w should = 600-800w
600w should = around 1000w
True ... and I would say that's fairly accurate. Newest lm301h are slightly higher at 2.23 I think. I've seen that referenced places before. It gives a better idea of efficiency.