Universal dimmer switch with automatic lamp detection. Standby loss of only 0.3 watts. Minimum brightness, maximum brightness, and dimming speed are adjustable. Includes children's room and snooze functions. 1 unit division. Universal dimmer switch for lamps up to 400 W, depending on ventilation conditions. Dimmable energy-saving lamps and dimmable 230 V LED lamps are also dependent on the lamp electronics. Up to 3600 W with power additions at connections X1 and X2. The control inputs are galvanically isolated from the supply and switching voltage. Switching occurs at zero crossing with soft on and soft off to protect the lamp. In the event of a power failure, the switching position and brightness level are saved and may be activated upon restoration of the supply voltage. From 110 V control voltage, glow lamp current is 5 mA (not applicable for RTD). Automatic electronic overload protection and over-temperature shutdown. Functions and times are provided according to the operating instructions.