I don't think those regular LEDs will work. They may look bright but they don't produce enough PAR. You have to use high power 1w or 3w LEDs and to do that for a 40 gallon will get expensive. Also, if your tank is any deeper than 12" you need optics with the LEDs which means more LEDs packed tighter and higher cost. I am pretty sure the ones you have will not even come close to the performance of your MH. Sorry. I would suggest checking out the lighting forum at nano-reef.com as alot of folks have been experimenting with LED lighting over there and they have a good handle on LEDs, PAR and optics to penetrate down into the water.
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02-17-2009, 05:35 PM
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