Dimmer With Push On/off Knob, 3-Way | Controls 600 W Incandescent or Halogen Loads. Push On/off; Rotate to Adjust Light Level | Dimmable: Non-Dimmable ; Operating Temp: -20c (-4f) to a Maximum of +45c (+113f) ; Nsf Approved: Yes - Approved | 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