Using a Seneye, and it consistently records above 500 par at 72% PUR every time I measure it in the middle of the tank near the top where I have my lights mounted. Argue if you like but I will take a consistent measurement with that device. Granted I have a 5 foot tank with the middle two lights closer than 18 inches. I just know what my Par and Pur readings are. By all means if you don’t believe it come over and measure for yourself. The outer two lights are further apart so I can keep a mixed reef. And I keep looking I have yet to find anything specific for PAR or PUR care for specific coral. I would love to see something like that though. They have enough power to grow any Acro I have put in the tank so far and once I knocked it down from 80 to 60% on the LED’s the coral started looking much better and the coloration improved.