Thread: Is it about time to change the T5 light bulbs? Par meter readings
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Unread 05/20/2009, 07:08 PM   #7
kaskiles
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Join Date: Oct 2004
Location: Merritt Island, FL
Posts: 726
The tank is 60" wide, and the fixture is 46" wide. So your edge readings of 510 and 580 are not directly under the bulbs?


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