Operating instructions DuoFern Universal Dimmactuator flush-mounted (fm) 9476 F. Tepaße Updated September 29, 2023 09:42 Follow Download PDF Related articles Operating Instructions Universal Dimmer 9476-1 Operating instructions 1-10V control unit 9482 Can the universal dimmer be controlled via an external pushbutton? What are scenes? How many devices can be registered on the DuoFern sun sensor 9478-1?