Versonel Nightwatcher Pro LED Robotic Security Motion Tracking Light VSLNWP502B Aluminum and plastic construction in white finish designed for outdoor use. Microprocessor motion/heat activated auto tracking light head 3X passive infrared sensors with a total detection zone of 220 and up to 55 ft. Fitting automatically re-centers when sensor deactivates. Robotic head rotates left and right with total movement of 220. Push Button Programmable functions 8 x 1W Nichia 120lm LEDs designed to deliver a bright 850LM output Nighttime mode (default setting) - light on at night only and All day mode - light stays on all day and night, constant Requires hardwire connection to 120V power source