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Unread 12/08/2017, 05:15 PM   #9832
Scrubber_steve
I'm really very likeable
 
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Join Date: Aug 2016
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Quote:
Originally Posted by Horace View Post
5 days growth on new lights...on 3 hrs off 2 hrs. I would say its working . No question...algae likes the white/yellow light just fine.....

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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


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