The Planted Tank Forum - View Single Post - DIY Cree XML LED Lighting for 150G
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post #2 of (permalink) Old 03-26-2012, 08:48 PM
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Join Date: Dec 2005
Location: Sacramento, CA
Posts: 19,673
Those aluminum extrusions sure make a neat looking LED light. Beautiful job. Based on my data and on I think you get about 40 micromols of PAR at the substrate, with 3 inches of substrate in the tank. That is a great light level to use.

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