The Planted Tank Forum - View Single Post - Does anyone use these? and if so How many watts does it put out?
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Old 03-29-2006, 12:31 AM   #3
Rex Grigg
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A triple tube 48" fixture will have a nominal output of 120 watts when using T12 bulbs and a nominal output of 96 watts when using T8 bulbs.

The question really is: How much light do these get into the tank.

Answer: Not enough for what you pay.
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