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Old 01-17-2012, 11:36 PM   #43
Ibn
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Custom LED fixture built by a buddy. Fan cooled by 2 10mm fans. Forgot the details of the bulbs and driver.





PAR readings from what's currently run (12 bulbs out of 18; first channel whites 100% output; 2nd channel 4 blues, 2 whites 25% output; 3rd channel all blues off). 7" above the waterline or 16" to substrate depth in the front.


PAR readings taken with Apogee unit.
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