Replaces Current Switch Using Existing Wiring Can Be Combined With The In-wall Smart Switch Dimmer Or Fan Control Dinner Features Customizes Lighting Output & Creates The Perfect Ambiance For Any Room Operates As Home's Automation System's Primary Control Requiring 3-way Or 4-way Wiring Configurations 3-way Wiring Configuration Turns Light Or Appliance On and off From 2 Separate Locations 4-way Wiring Configurations Turns Light Or Appliance On and off From 3 Separate Locations Interchangeable White Or Almond Paddle Design To Match Most Standard Wall Plates & Home Dcor For Pairing With Other Z-wave Smart Home Products And Gateway