With control inputs for light switches and light sensors. To protect the lamps, the switching occurs at zero crossing with soft on and soft off. In addition to the minimum brightness, the dimming speed can also be adjusted, which simultaneously changes the duration of the soft on and soft off. In the snooze function, the set value is dimmed down to the minimum brightness and then switched off, while the children's room function gradually brightens up to the set brightness level. Short control commands turn the light on/off, while continuous controls adjust the brightness up to the maximum value. Suitable for resistive, inductive, and electronic loads, which are automatically detected. If energy-saving lamps are to be dimmed, the function rotary switch should be set to ESL. This takes into account the special conditions for dimmable energy-saving lamps. For example, the switching-on process is optimized, and the dimming speed changes logarithmically; a children's room setting is not possible.