The Planted Tank Forum - View Single Post - LEDs made easy-ABC of LED.
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post #2 of (permalink) Old 12-06-2012, 12:55 PM
Wannabe Guru
Join Date: Feb 2011
Location: Baltimore Maryland
Posts: 1,701
Don't forget PUR which is a more accurate way to determine the actual usefulness of a lights output for photosynthesis.
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