moonlight module questions

dadriance · Post by **dadriance** » Sat Aug 04, 2012 9:10 am

I'm trying to decide between building a moonlight function into my (under construction) DIY LED fixture or simply adding RA's module(s). Am I correct in thinking that I may need more than )1 module for a 90 gal (48x18) tank and that I'd need a PWM channel for each one? How many modules would I need for this tank size?

rimai · Post by **rimai** » Sat Aug 04, 2012 9:15 am

Correct.
I'd say at least 3 moonlights and 4 or 5 would be optimal.

dadriance · Post by **dadriance** » Sat Aug 04, 2012 9:46 am

Thanks Roberto. 3-4 modules plus an additional pwm module to run them is probably not my best option. I may end up just putting a few LEDs on a seperate driver and running it off a single PWM channel.

Piper · Post by **Piper** » Sat Aug 04, 2012 3:20 pm

Is it possible to run more than one moonlight off of a single PWM port? I just picked up two moonlights because I only have the two ports available but I thought I just read a post here somewhere that said you can run more than one light per port.

~Charlie

rimai · Post by **rimai** » Sat Aug 04, 2012 4:03 pm

no. just one moonlight per channel.
you can run multiple led drivers, but not the dimmable moonlights.

Piper · Post by **Piper** » Sat Aug 04, 2012 5:47 pm

Ahh, got it. That must have been what I read.

lnevo · Post by **lnevo** » Mon Aug 06, 2012 12:51 pm

How about on a 36 inch tank, would I be ok with 2?

rimai · Post by **rimai** » Mon Aug 06, 2012 1:03 pm

I have 2 in my 36" tank and it is fine to me.
I do have some darker spots, but it's ok to me.

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