The dSready IC T4-PLUG-IN module is designed for the EDIZIODUE button series from FELLER. The electronics including digitalSTROM technology are fully encapsulated in a housing in the mounting frame. The module is designed so that the entire product family with 1, 2 and 4-way buttons (with or without LED) can be plugged in as a 1-way or 2-way version. When actuated, the light intensity of the LEDs on the buttons changes and thus shows the operator that the dS telegram has been sent. Only L and N have to be plugged into spring clips. This saves considerable assembly time and there is no risk of confusion when connecting. The Feller tops are not part of the product delivery.