To me that was the author's speculation. It seemed sound but I wanted to keep it definitive.N8thaniel said:
that link actually says the opposite
read about remote phosphur
I do believe that spectrum is important; but a bunch of lumens, even if not in the ideal range, will benefit plants more than those purply LED fixtures.
Smoke master I think everyone believes you contribute to the led discussion. I just don't think hid is hands down the best anymore. let's quit taking it as fact