The Lamar Lighting Occu-Smart VO Series is a premium grade fluorescent fixture designed for long-term, dependable service. The Occu-Smart Voyager is a unique luminaire controlled by an integral ultra-sonic motion sensor, designed to provide safe, dependable illumination while conserving energy. Areas are fully lit only as needed. Ideal for stairwells, restrooms, laundry rooms and other areas where maximum light levels are not required on a constant basis. The ultra-sonic features a lamp conditioning circuit that keeps new lamps lit for 100 hours to assure long lamp life and proper operation. Bi-level fixtures operate at an adjustable standby light level, offering safety and security with full light output instantly upon occupancy.