This kit uses a wireless dimmer to easily add control of a light or fixture from a second location, even in rooms or locations currently without 3-way wiring.Simply replace the existing switch or dimmer with the kit’s radiant® Tru-Universal Dimmer (wired), then use the included battery-powered radiant® Wireless Dimmer to add another point of control wherever it is desired. Mount the Wireless Dimmer to any wall or surface – without cutting, wiring or tools – using the provided adhesive. The dimmers come pre-paired to enable multi-location control in seconds. Want app control? These devices are equipped for enhanced functionality. Simply add a Smart Gateway with Netatmo and use the Legrand Home + Away app to control your lights from anywhere (and much more).