Is moonlight adjustable?

[dadriance]

I've added moonlights to my new fixture and am running them on channel 0 of a PWM expansion. I used four 3w LEDs and set them up as two strings of two on a Mean Well LDD-300H so that each LED is running on 150mA at just under 3V with the PWM signal at 100. I'd hoped that this would put me in the ballpark but it's still too bright. I'm considering adding a third string of 2 emitters and mounting them over my fuge (or possibly backlighting the fans in the fixture) to reduce the current to 100mA per string.
A better solution might be to lower the PWM value. Is this possible? I noticed with my old fixture that the moonlight value seems to peak at 80 for a full moon and drops to 4 for a new moon. Is there a way to reduce the value, maybe by half so that it ranges from 2 to 40 instead of 4 to 80?

[00Warpig00]

You could take a look how it may look with lower %'s you can set the pwm channel's % using the following line in your code

ReefAngel.PWM.SetChannel( 0, 100 );

Where the first value 0 is the PWM channel and the second value 100 is percentage.

If you like the results I suppose you could set up a slope setting on the PWM channel with any values you experimented with and liked.

Nick

[rimai]

You can do that, but the display will also show the divided value.

Code: Select all

ReefAngel.PWM.SetChannel( 0, Moonphase()/2 );

This will divide the value by 2

[dadriance]

Thanks Roberto. that's exactly the answer I had been hoping for.