RS485 bus universal dimmer switch 1 channel FUD12NPN-12V DC, power MOSFET up to 500W, energy saving lamps ESL up to 100W and LED up to 250W. Only 0.3 watt standby loss. With adjustable minimum or maximum brightness and dimming speed. With switching operation for light alarm clocks, children's rooms and snooze function. Also for dimmable energy saving lamps. Also with light scene control by PC or wireless pushbuttons.