Quote:
Originally Posted by martinmcnally
If you are talking about the 3W Cree LEDs that are everywhere now a handy way to work it out is your tank LxHxW (all in inches) divided by 324. That will give you the number of individual LEDs recommended.
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um.. thats a handy way to figure out how many gallons your tank is now how many LEDs you need. LEDs are based on coverage only so how many would you need to evenly cover a surface area not a volume.
Steve
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