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I have the ebay non dimmable 120w leds. I am burning stuff on my sandbed with it unfortunately. :-( The lights are really really bright. My tank is a 24 x 24 x24 rimless cube and I have the lights about 7-8 inches from the waters top.
If you can get the dimmable ones and I bet you have better luck than I am.
@ Carey try putting 3-4 layers of nylon household screen on your lights it will dim them and give your coral time to adjust, remove 1 layer each week I had same problem was melting my Zoo's and shrooms.
@ Justin my tank is 29" deep I have the TaoTronic non dimmable
@Dan my birds nest is showing remarkable growth under these lights.