Vacancy Dimmer, Number of Buttons 2, Sensor Operation 0 to 10V Dimming, Occupancy, Photocell, Vacancy, Compatible with Series 0-10V Dimming Ballast (universal), Lighting Technology Incandescent, Operating Voltage 120 to 277V AC, Sensing Technology Passive Infrared (PIR), Load Rating @ 120V AC 10A (General Purpose, Standard Ballast), 5.8A FLA (1/4 HP Motor), 6.67A (Tungsten), 8A (LED/Electronic Ballast), Communication Method Hard Wired, Maximum Coverage Area 1,100 sq ft, Neutral Required Yes