Versonel Nightwatcher Pro Motorized Halogen Security Motion Tracking Flood Light VSLNWP220 Intelligent motion/heat activated sensor tracking light detects motion within the 220 field of vision of the PIR and turns the lamp to point directly at the intruder. Designed to illuminate when the detection area is entered by a person and will detect a moving heat source. 3X passive infrared sensors with a total detection zone of 220 and up to 36 ft. Aluminum and plastic construction in white finish designed for outdoor use. 120W energy saving Halogen lamp delivers a bright 150W light.