The Planted Tank Forum - View Single Post - DIY LED lighting for a 55gal long planted Tang tank
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Old 10-01-2012, 09:50 PM   #8
O2surplus
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Quote:
Originally Posted by RelatedToTheFish View Post

The only problem I have is the filler colors can really crowd out the white if they're not used very sparingly. I could maybe go as high as two of each filler per side, but any more would be pushing it. Could you substitute a high wattage resistor for the additional LEDs to even out the voltage?

It's not really a problem at all. There's no need for any power wasting resistors either. All you need is the ability to adjust the current to the "red" leds to compensate for there being more of them. You can set up the Cat4101 based driver with a potentiometer for infinite current adjustment. That way you can adjust the overall "color temp" of your lighting and still use PWM dimming for Sunrise/Sunset dimming.
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225 Gal, Glass "Reef Ready" w/ twin Iwaki Pumps & 2 Ocean Clear inline filters. Custom 320 watt LED Lighting system utilizing a 6' Maker's Heat Sink, 12 BridgeLux Vero 18's,3 purpose built 5 channel A6211 Led driver/Controllers, and a 20lb CO2 system w/ Milwaukee Ph Controller.
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