I should have some par # this weekend-I would suspect well over 200 in areas on the sand bed-that maxima in my pic is about 34" from the light source in indirect lighting shaded by the poc above it-it started in the sand bed below in direct light and quickly started to bleach! been in that shaded area for about 7 months now and has fully recovered trying to dial these things with out a par meter is risky-my worry about these fixtures is longevity not the ability support lifeAny one have PAR Readings for comparison?
12" or 24"
For clams and carpet anemones I like to see at least 200 at the sand bed.
Bill