Four channel universal dimming actuator for controlling incandescent lamps, 230 V incandescent halogen lamps, low-voltage halogen lamps with conventional or electronic transformers, and dimmable energy-saving halogen lamps. Optimized for dimming of Philips retrofit LEDs (LEDi). Increasing the max. load via channel bridging possible. The outputs can be switched parallel in any combination. Outputs automatically recognise the connected load. In addition, the operating mode can be selected manually. Status indication of the channels via LED. Direct manual operation with / without KNX voltage connected or in an unprogrammed status possible. Incl. 10 logic channels (light scene actuator, sequence actuator, logic gates, etc.).