Yes I would be interested as well. Color and brightness does not equal PAR.Par is definitely not as listed online. They way understate the par on these. I bought a couple of 100w ones to add some more light to ends of my tank, as my radions weren't giving me quite enough coverage. I run the radions at 85 % on the ab plus program and I had to turn the nicrew lights down a lot to get them to blend into my light spread. I also run one one a refugium, and they give great colour for the price. Would be very interested to see some real par readings on these lights.