Poppstar PWM Dimmer with 2-Pole Adapter (DC 12V 6A, 5.5 x 2.1 mm m/w) for LED Strips Dimmable (e.g. SMD 5050 3528 2835 5630) and other DC 12V LED Lighting

It works very well, smooth dimmer. However, when its not turn OFF or at 100%, it makes a subtile noise, almost inaudible, but if you are in a room in silence, you can hear it.