Universal dimmer switch, Power MOSFET up to 300W. Automatic lamp detection. Standby loss only 0.7 watts. Minimum brightness adjustable. With children's room and snooze function. Encrypted radio, bidirectional radio and repeater function can be switched on. Adapter plug for German safety socket. With increased contact protection. Supply and switching voltage 230V. Universal dimmer switch for lamps up to 300W. Dimmable 230V LED lamps and dimmable energy-saving lamps ESL depending on the lamp electronics. Switching in zero crossing with soft on and soft off to protect the lamp. No minimum load required. This dimmer switch is controlled with the radio buttons FT and FFT, the radio hand-held transmitters FHS and FMH and the remote controls FF8 and UFB. The set brightness level remains stored when switched off (memory), but can be switched off for ESL lamps. In the event of a power failure, the switching position and brightness level are saved and, if necessary, switched on when the supply voltage returns. Automatic electronic overload protection and overtemperature shutdown. Encrypted sensors can be taught in. Bidirectional radio and/or a repeater function can be switched on. Every change in status and incoming central control telegrams are then confirmed with a radio telegram. This radio telegram can be taught in the Professional Smart Home Controller. The current dimming value in % is also displayed in the respective app. Up to 35 radio buttons can be assigned with the left LRN button, either as a universal button, direction button or central control button. The right button can be used to switch on and off manually. The buttons can be taught in either as a direction button or as a universal button: As a direction button, one side can be used to switch on and dim up, and the other side can be used to switch off and dim down. A double click on the switch-on side triggers automatic dimming up to full brightness. A double click on the switch-off side triggers the snooze function. The children's room function is carried out on the switch-on side. As a universal button, the direction is reversed by briefly releasing the button. Children's room function and snooze function according to the operating instructions. The LED accompanies the programming process according to the operating instructions and indicates radio control commands during operation by flashing briefly.