Enerwave ZW3k-NEW Add-On Switch for Z-Wave Home Automation Light/Fan Switches, NOT a standalone Z-Wave switch, requires Z-Wave switch to work, Interchangeable Face Cover(White, Light Almond, Black) Requires a Z-Wave home automation switch to work. This is an add-on switch for Z-Wave home automation light switches and dimmers, NOT a standalone switch, does NOT have Z-Wave technology Enables 3-way and multi-location control to a Z-Wave light switch (such as ZW15SM-PLUS), Z-Wave dimmer switch (such as ZW500DM-PLUS), or Z-Wave fan control Performs the same functions of Z-Wave switch it is connected with. Works with the main switch to control the load as a secondary switch Reduces energy consumption and provides more convenience to you and your family Two Extra Interchangeable covers - Black, Light Almond. UL-listed, 120VAC, 1800W, 1/2HP. **Required Wiring: Neutral, Traveler**