... mode.3.Microwave sensor automatically detect people or car to turning light on/off., when no body ... LEDLED quantity880pcs LEDFlux luminous6090LmEmergency duration4-5 hoursBattery6pcs Li rechargeable batterySensor range7-9M 360°lighting time(sensor delay ... chain installation. Application:Widely used in supermarkets, warehouse, underground car parks, tunnel ,corridor, schools, factory, hotels, building ...