Review on 🌈 Enhanced SUPERNIGHT RGB LED Strip Controller: Glass Touch Panel, Wall Mount Dimmer for SMD 5050 3528 LED Strips, Sensitive Touching, LED Night Indicator, Adjustable Brightness by Barbara Lopes

After installing 2 of these I like all the different functions especially the 20 second timer. Just one minor thing that caught my eye, I use it to power 12V LED lights and when the light is low the switch makes the light buzz at high frequency. At full brightness the hum almost disappears and is a tiny ultra high pitched sound. Most people probably won't notice it, but it's there. And I know it's not a light because they don't make a sound on any other switch. I know this is a problem with some dimmers.