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Unread 12/08/2017, 07:33 PM   #9834
Horace
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Join Date: Mar 2005
Location: Atlanta
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Quote:
Originally Posted by Twinfallz View Post
The algae will utilise the red spectrum of light in particular & the other spectrums that makes up the white will be a waste of Watts.

Your 50W light, on each side of that screen, could instead be about 16W of red 660 nm leds
False.

I had 2x50w red grow lights before and the algae didnt grow at even half the speed. Try it yourself.

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