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post #27 of (permalink) Old 07-18-2012, 05:10 PM Thread Starter
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Originally Posted by hamato View Post
Is there any cutoff for the CAT4101s? That is one thing about the Meanwells I don't like, they cut out at about 30% which is still pretty bright when driven at 800ma max.
Also I wonder about moonlight support. Something like 2-3 LEDs running off one channel fully dimmable would be nice.

There's no abrupt cut-off with the CAT 4101's. They can be made to dim to a fraction of 1%, provided the PWM signal frequency has been set low enough. 150Hz seems to be that magic number. It's too bad only 2 output pins on the arduino can be configured to PWM with a frequency that low.

225 Gal, Glass "Reef Ready" w/ twin Iwaki Pumps & 2 Ocean Clear inline filters.Lighting- Custom built DIY 600 watt LED system, BlueFish "mini" Led Controller,iAqua Aquarium Controller , and a 20lb CO2 system w/ Milwaukee Ph Controller.
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