Yeah, turn them down....way down. I turned my Radions down to 70% output at their peak and all the problems stopped. We don't realize just how bright the LED's are because they don't bleed into the room as much as the MH or t5's (thus the lower energy bill).
My tank is SPS heavy. I've got all the fancy/ hard to keep stuff like Pearlberry, Strawberry Shortcake, Jedi Mind trick, as well as some wild colonies and now they are loving the radions.
Here are the subtle signs that I noticed (over the 2 months that I had my Radions turned way up):
-The skimmate in my skimmer was more clear than usual. I think this is a sign that corals are metabolizing more, but I'm no marine biologist.
-My montipora colonies at the bottom of my tank started to change to a darker color at first and then they started to STN, which is almost unheard of with montipora. I've almost completely lost one of my giant colonies; though it is slowly recovering now. Guess they weren't used to all of that newly found light.
-My wild acro's started to bleach a little, but have since become more vibrant again as they recover.