The Decora Smart Wired Dimmer Companion is designed for use in 3-way and multi-way applications in up to 4 additional locations so multiple devices can control the same light fixture or ceiling fan. The Wired Dimmer Companion requires a compatible Leviton Decora Smart or Decora Digital dimmer or fan speed control to function. It aesthetically matches Decora Smart and Decora Digital dimmers and fan speed controls, provides intuitive operation with digital circuitry and soft fade on/fade off. It is compatible with Leviton Decora standard and screwless wallplates (sold separately). Dual voltage, a neutral wire is required for installation. White face assembled on device with ivory and light almond faceplates included. Change the color of the companion at any time by ordering a new faceplate (DDKIT) in white, ivory, light almond, gray, black and brown color options.