Can I somehow use the PacLED64 to control this marquee light? Can I use it to turn it on/off and/or fade it?
PacLED64 provides 20mA per channel, but the light comes with a 2000 or 3000 mA power supply.
- The linked site does not list the actual current draw at 12v for the light or whether it is dimmable.
You probably can't even wire that marquee light directly to all of the PacLED64 channels in parallel
to get full brightness.
(64 channels * 20 mA = 1280 mA)
You should be able to work around that limitation (and simplify the wiring) by wiring the control side of a solid state relay to the PacLED64 in place of one of the LEDs shown in this image. For example, between "+" and "31".
The 12v operating voltage for the light flows from the wall wart through the COM and NO terminals of the relay to the red wire on the light. Ground from the wall wart connects directly to the black wire on the light.
Wall wart + ____ COM ____/____ NO ____ Red wire on light
Wall wart - _________________________ Black wire on light
That approach would allow you to turn the marquee on/off, but you wouldn't be able to automatically dim it.
Scott