Just turn the knob to adjust the brightness or simply turn the light on/off. Operate the other way around, when it turns to the far left, the light goes out.
12V DC 0-100% PWM Manual Knob Dimmer Switch for COB LED Strip SMD 5050 3528 DE
12V DC 0-100% PWM Manual Knob Dimmer Switch for LED Strip Light Useful Led Dimme
904 AC 220V 1A manual knob floor table lamp in line 15-60W dimmer switch
15-60W 904 AC 220V 1A Manual Knob Floor Table Lamp In Line Dimmer Switch 2Pcs
904 AC 220V 1A BLACK manual knob floor table lamp in line 15-60W dimmer switch
904 AC 220V 1A WHITE manual knob floor table lamp in line 15-60W dimmer switch
