The Planted Tank Forum - View Single Post - Comparison of Lighting Types (Lumens and Watts)
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post #29 of (permalink) Old 11-11-2009, 04:09 PM
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Originally Posted by guppygolucky View Post
If the WPG is not really a concern...and only the K is concerned
These are both untrue statements, so don't get confused again. Wattage is still a concern but WPG is not really the best way to look at things. It's just a generic guideline people use for lack of anything better. And saying that only the K is concerned is also very false, because even if you have the correct spectrum, what does it matter if the light doesn't reach the plants because it's too low of a wattage?
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