High Bay Fixture Mount Occupancy Sensor lighting control with Daylight Harvesting - PIR technology, Single relay with one (1-10 VDC sinking current) control line for use to connect directly to low voltage control ballast. Examples i.e. Advance Mark VII or Leviton Sector 7, ballast. 21 inch Leads, 120-277 V, 50/60Hz. Color: White Fixture Mount Passive Infrared High/Low Bay Occupancy Sensor, Time Delay: 30s30m, (2) interchangeable, adjustable 360 degree lenses, the high bay PIR lens provides 1.5:1 spacing to mounting height coverage for 21-40 ft, the low bay lens provides 2:1 spacing to mounting height coverage for 13-20 ft, 120-230-277 or 347 VAC, UL Listed, meets energy code requirements for ASHRAE 90.1 and Title 24.