I have used the older version of the light and had great success with corals growth and colors of my SPS. End of day that light was not a par killer. if anything, it was a little low. The led clusters were only 95 watts if I recall so I often wondered if it was the T5 that was growing everything. I am now using the Phillips Coral Care light and getting better growth but less shimmer in the lights.
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Richard
Current Tank Info: 450 gallon peninsula tank 72*48*30 filled with a bunch of frags and trying to grow them out.
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