help with chinese led

Cuong Ly

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i just started my reef tank and has two led 7"(165W full spec) above my 65 gallon tank. How much power should I set my led ?
 
Start off small and gradually build it up .. try and match what your old light was giving out and work up from that . Blues 50% royal blue 75 % is what I started on mine with whites at 35 % this is what I'm at now .. but my light is 50-60 cm above the water line. If yours hangs lower then start lower%

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it will varies with what kind of livestock you have in there. some tolerate a little more light and some less. but If you have two fixture, i wouldnt go over 40-50% on the white.
 

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