Press the button to switch the lighting on or off. You can also dim the lighting by turning the rotary knob.
This rotary knob only works in combination with theWall dimmer switch. With this dimmer switch, the dimmable LED lights can be dimmed very gradually to zero per cent. You can also set the maximum percentage to which the lights can be dimmed. It is a universal dimmer and you can connect your own switchgear to it in almost all cases.
