Dimmer With Push On/off Knob, 3-Way | 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 | Controls 600 W Incandescent or Halogen Loads. Push On/off; Rotate to Adjust Light Level | Provide Access for Pulling Conductors; Enable Change in Direction in Conduit Runs; Compact Design Allows Use in Areas With Limited Space; Provide Future Access for Maintenance and Wiring Changes; Compact Design; Precision Ground Flange; Blind Drilled and TFurbay Electric Supp