that is center of each light fixture. Overall at spot reading of each light, Goliath averaged 60 more par then the 1000w. he used a hydrofarm PAR meter i think it was,
I surely cant afford the big SOB, but Im going to make one myself, lol.. I have the plans drawn out, just going to be a hobby thing over the next few months. 256 diodes, my spectrum.
I just like the Monos, its a personal preference thus far. When i modded my Mars300 with new spectrum and lenses, it was a beast. 1400 par at 18inches is pretty damn good for 123 watts, just a shit footprint. Then if you add like 4 together, the heat is tremendous unless you have great hvac to clean, probably like a normal set-up, lol, or a Good set-up.
But the diodes kicked ass for me.