lumen and PAR are defined terms
an led array designed on a PAR basis will have very low measured lumens

I agree that SnS is doing better than most (all ?) and it is due to the intensity.

FWIW
a Sunmaster 600W MH conversion bulb has 50,000 lumens and 195 PAR watts, ~ 1/3 of its output is of use to us
brownthumb Reviewed by brownthumb on . LED grow lights... input please. Hello guys, I'm exchanging eMails with a representative from a LED company. I asked him if they could produce a custom light for growing, and here's what he told me: Our options are as follow: 940nm, 850nm, 660nm, 630nm, 610nm, 590nm 570nm, 530nm, 510nm, 470nm, 460nm, 400nm and a total of 64 LEDs in the bulb. Rating: 5