Quote Originally Posted by squarepush3r
you should look at the work of these hydrogrow LED people, they got the spectrum down on their products

Hydro Grow LED
Only two of their listed wavelengths have the highest efficiency, the other two are off by about 10-20nm and that really affects the performance of the light.

Also, their far-red is useless since they're using 660 and not 680. The Emerson Effect with Far-Red doesn't occur without 670-680nm radiation, 660 just doesn't cut it very well. Also, the overall balance, too much red.

The only thing they have that appears to beat me is 60 degree diodes in the panel construction. Even their price per watt is kinda out there.