1-10V control dimmer switch for electronic ballasts. 1-10V control output 40mA. Standby loss only 1 watt. Minimum brightness and dimming speed adjustable. Includes children's room and snooze function. Also suitable for controlling LED converters with a passive 1-10V interface without auxiliary voltage up to 0.6mA. Above that, with auxiliary voltage. Local and central on/off with the same potential. Supply voltage is galvanically isolated. State-of-the-art hybrid technology combines the advantages of wear-free electronic control with the high performance of special relays. Circuit operates at zero crossing to protect contacts. The set brightness level is saved when switched off (memory). In the event of a power failure, the switching position and brightness level are saved and may be turned on again when the supply voltage returns. The %-rotary switch can be used to set the minimum brightness (fully dimmed). At the same time, it is determined whether the children's room function and the snooze function are activated.