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I have LED's made by Epistar. They have 55 3-watt led. They are set to 2-watts, so they dont overheat the LED's. They are 1/2 white LED, 1/4 Blue, 1/4 royal blue. They work great, nice coloration out of corals. I have SPS growth with these units. Only cost $160. Plus low heat output.
Hope this helps.
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