I have a set on an 80 rimless 16" deep. I run the blues at 35% for about 10 hours. Whites at 8% for 8. They are about 15" above the water surface for a huge spread. The color is very close (by eye) to my radions running the coral lab sps ab program. Any brighter and I bleach anything. I have my chalices on the bottom and sticks on top all doing great.
I turned them up to 40/10 last week and bleached caps mid way up the tank in one day.
They are very strong lights.
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