3-wire dimmer switch, from the Simon 100 series. The IO Ready dimmer switch requires a power supply of 230 V and includes a screw terminal system. You can find it in the “control and regulation” category within the Simon 100 series. Thanks to the IO system, this switch is digitalizing the space in your home where it is installed. Simon 100 is the first series to incorporate the IO system, in which switches transition from analog to digital, thus offering a world of experiences that will improve your daily life and providing solutions for new ways to interact with your home. Discover the first push-action switch designed to be used even with your eyes closed, inventing a new way of interacting and greatly facilitating interaction with the element.