The Planted Tank Forum - View Single Post - ODNO measurements: power consumption vs light output(LONG)
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post #7 of (permalink) Old 09-20-2005, 05:38 PM
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Do you have a correlation between the foot candles values and the common "Lumens" ratings that manufacturers supply?

Also, what's the difference, as far as plant growth, between 2 ODNO tubes, if they put out approx twice the light when OD at 4x, and 4 NO tubes run at their designed wattage.

Wouldn't the heat from the 2 OD bulbs (at 4x) be more than 4 bulbs running at normal wattage, even though total light output is presumeably the same?
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