Good Info in that thread, these are 277 watt lights, Uno 2.0. at 82 watts in 27 inches of water mounted 12 inches above water line I was getting 45 par on sand line, 145p in 13inches water, 310 at 1 inch water. I grow softy's, love the movement, so I don't need a ton of light, but I am acclimating to a 91 watt profile, I'll take more par readings then. My aim is to hit 200par at 13 inches of water, without going over 100 par at sand line. I'll know this Saturday how close I am.
I have not tested to prove it yet, but IMO these lights are capable of putting 500+ par on the sand in my tank. They will Out preform any other light out there just due to the sheer wattage alone. the XR30 G4 was radion's highest watt light at 210watt there really is no comparison.
Orphek has a solid rep, but they are based in Europe and the warranty they have, to me is lack luster, think it is 1 yr they send you replacement parts, you do the installation. With the Reefi, 3 year, anything goes wrong, Ask Daniel on his FB page, if he can't trouble shoot you thru it, you send him light, he fixes and sends back. I have seen this guy in action online, his dedication to his customers is what originally sold me on this light.