Dimmer With Push On/off Knob, 3-Way | Controls 600 W Incandescent or Halogen Loads. Push On/off; Rotate to Adjust Light Level | Fan Control (Left) Use Slide to Turn Fan On/off and Adjust Fan Speed. 3 Quiet Fan Speeds Designed to Prevent Motor Hum (For Use With One Ceiling Paddle Fan). Dimmer (Right) Toggle Turns Light On/off. Slide Up to Brighten, Down to Dim | Features: Auto Daylight Saving Time Adjustment, Low Battery Indicator, Cr2 Lithium Battery Provides a Minimum of 2 Years of Time Keeping Without Ac Power, Manual Override Feature, User Program Selections Are Stored in Non-Volatile Memory, 5 Year WarrantyFurbay Electric Supp