Multi-channel universal dimming actuator optimized for dimming retrofit LED lamps (LEDi). Also suitable for dimming incandescent lamps, low-voltage halogen lamps with conventional or electronic transformers, 230 V halogen lamps and dimmable halogen energy-saving lamps. Automatic load detection (can be deactivated). Separate N connection per channel. Parallel connection of the outputs possible to increase the output power. Outputs can be connected in parallel in groups. Minimum load: 2W. Manual operation on the device also possible without bus voltage or in unprogrammed state. Programming of the device also possible without 230V supply voltage. Extensive test and diagnostic functions via the i-bus tool. Fast parameterization in the ETS using copyable channel templates. With integrated bus coupler. Nominal power at 230 V~ mains voltage: 230 V~ incandescent and halogen lamps: 2 x 315 W/VA to 1 x 500 W/VA. Dimmable 230 V~ LEDi: 2 x 315 W/VA to 1 x 500 W/VA in trailing edge phase control, 2 x 120 W/VA to 1 x 200 W/VA in leading edge phase control. Inductive L-transformers with LED/low-voltage halogen lamp: 2 x 315 W/VA to 1 x 500 W/VA. Electronic C-transformers with LED/low-voltage halogen lamp: 2 x 315 W/VA to 1 x 500 W/VA. Electronic LC-transformers with LED/low-voltage halogen lamp: 2 x 120 W/VA to 1 x 200 W/VA.