Power MOSFET for LED lamps 12-36V DC up to 4A, pulse width modulation PWM. Standby loss only 0.1 watts. Minimum brightness and dimming speed adjustable. With children's room and snooze function. For recessed mounting. 45mm long, 45mm wide, 18mm deep. Dimmer switch for R and LED loads up to 4A depending on the ventilation conditions. With soft on and soft off to protect the lamps. Supply voltage 12 to 36V DC, depending on the connected LED lighting. A pulse-proof power supply is required. Universal control voltage 8..230V UC, galvanically isolated from the supply voltage. Direction buttons can either be connected to arrow up/arrow down, or these connection terminals are bridged and a button is connected as a universal button. With universal button: Short control commands switch on/off, permanent control changes the brightness up to the maximum value. An interruption in the control changes the dimming direction. With direction button: switch on and dim up with the arrow up, switch off and dim down with the arrow down. A double pulse with the arrow up dims up to full brightness at the set dimming speed (dimspeed). The set brightness level is saved when the light is switched off (memory). In the event of a power failure, the switch position and brightness level are saved and switched on when the supply voltage returns. Automatic electronic overload protection and overtemperature shutdown. The LED indicates control by flashing briefly. The minimum brightness (fully dimmed) can be set with the upper % lamp rotary switch. The dimming speed can be set with the lower dim speed rotary switch. The duration of soft on and soft off is changed at the same time. With children's room switch (universal button or direction button arrow up): When switching on by pressing the button for a longer period of time, the light switches on at the lowest brightness after approx. 1 second and then slowly dims up as long as the button is pressed, without changing the last saved brightness level. With snooze function (universal button or direction button arrow down): A double pulse dims the light from the current dimming position to the minimum brightness and then switches it off. The maximum dimming time of 60 minutes depends on the current dimming position and the set minimum brightness and can be shortened accordingly. The light can be switched off at any time by pressing the button briefly during the dimming process. A long press during the dimming process dims the light up and ends the snooze function.