Controls 5 a Fan. Rotate On/off; Rotate to Adjust Fan Speed. Fully Variable (For Use With Multiple Ceiling Paddle or Exhause Fans). Factory Set Minimum Speed | Flexible and Easy to Use Device That Allows the User to Control Lutron Wireless Load-Control Devices From Anywhere in the Space. Battery-Operated Control Requires No External Power or Communication Wiring. Provides Control for Caseta Wireless Controls, Ene | Seven Gang 3/4 in Raised Device Cover; 15 15/16 in Wide