I have intensity at 100%. Here's my variable speed channel for the light color.
I use an hour of intense red light in the middle of the night just because.
Otherwise 40% is a good growing color, for chaeto anyway.
I don't run the light 24/7 as suggested here.
I also have it plugged into an EB with a reverse photoperiod.
So I can also use it for other things, such as turning on when I open a cabinet door at any time.
To shut it off with just the variable outlets, take the other channel, intensity, down to zero when you want the light off.
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