Adopts intelligent human infrared sensing principle auto light on if there is people and auto off when people left; White LED efficient energy-saving environmental friendly explosion-proof and radiation free; Long lifetime; Suitable for various occasions; Anti-interference and mute high sensitivity fast response speed and long sensing distance; Built-in light sensor device can auto identify daylight and night auto standby during daytime and light on at night; Elegant fashionable and fine; Easy to install no need screws; With 3-mode: off steady on auto sensing; Sensing distance: <3m; Sensing angle: 100 degree; LED life: >80000 hours; Standby current: 39mA; Working current: 70mA; Delay off time: 15s; Auto checking time: 15s; Working temperature: -5~38'C; Working humidity: -30~45'C.