I was under the impression that my HPS gave great red spec. And my UV-B reptile bulb took care of Blue spec. Together I thought they were unstoppable. I relize that MH also offers UV-B but to me has poor LperW. And greater heat generation.
I also can't figure out what % a MH bulb emits in that spec.
Zcomp Reviewed by Zcomp on . The concept of the red / far-red system (phytochrome system) Found it interesting, thought I'd share. "A surplus of light like the strong UV radiation in high mountains causes drastically reduced elongation of the internodes, a decrease of the assimilating surface, often to a strongly enhanced production of anthocyanes and usually also to intensely coloured flowers." "the growth of lettuce seedlings is not influenced by the subsequent exposure to light of the wave lengths lambda = 658 nm and lambda = 768 nm, while the exposure to both wave length Rating: 5