I’m using a monoswitch for the Fibaro dimmer module. This switch has a 12-30vdc LED for lighting the switch.
Any idea where I can pull a vdc source so I can have my switch illuminated?
I don’t know what a lighted monoswitch is. You may get more responses if you provided a more detailed description.
If you need low voltage DC current (12-30VDC) in a location that has only high voltage AC(120-240VAC) then your only option is to add an AC/DC transformer.
Or you could build your own circuit. But if you had to ask, you should not(!) build your own.