Four different modes of operation can be selected (timer, twilight switch, memory switch, random switch).
A potentiometer is used for settings of time and brightness values.
The Universal centre plate is used in combination with a switching or dimming insert (except 2-channel relay switch insert). In installations with a presence detector or an automatic switch, the light can also be switched depending on movement. The Universal centre plate detects the ambient brightness by means of a light sensor. The sensor is located together with the status LED behind the window in the middle of the centre plate.
Operation with e.g. a dimmer insert:
1. Longer operation of the upper half: dimming from min. to max.
2. Short operation of the upper half: ON
3. Longer operation of the lower half: dimming from max. to min.
4. Short operation of the lower half: OFF
5. Short operation of the full surface area: ON or OFF
6. Operation of the full surface area for min. 3 sec.: storing the current brightness value
7. Longer operation of lower half in OFF mode: switching ON with min. brightness