Will have more than 20 years that dimmer switch in the fuse and use only 1x. Then he was put into the bedroom and in the living room, there was something new. But we were not happy. So we again bought the Busch-Jaeger 2250U. He's been through the switch function always has the same attitude as at the time when it was switched off. You do not turn down to turn off and not be twisted the knob it. Since he is no sensor surface, leaves no one "Fingertatscher" ...