The dSready IC T4-PLUG-IN-300 module is designed for the FELLER EDIZIOdue button series. The electronics, including Digital Strom technology, are fully encapsulated in a flush-mounted housing with a mounting frame. The module is designed in such a way 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. Integrated SW-SKM300 technology. When pressed, the respective LED on the button lights up and indicates that the button has been pressed. Only L and N have to be plugged in via spring terminals. This saves a considerable amount of assembly time and there is no risk of confusion when connecting. The Feller upper parts are not part of the product delivery.