03-13-2018, 09:39 AM
anything with a switching supply can cause noise. I've "de-buzzed" a lot of LED lights and dimmers by putting a choke in the AC line. I think an LED in a piece of electronic equipment won't buzz unless the it is supplied with a switching supply or a DC to DC converter. I had a couple of momentray buzzes every few seconds that turned out to be battery chargers for my various battery powered tools. Very annoying.