Quick sense 180-Degree Automatic Wall-Mount PIR Motion Switch with Light Sensor (220V, White) strongquick sense wall pir sensor (qs-09)/strongthe product is new energy saving device, it adopts good sensitivity detector, itegrated ckt. It gathers automatism, convenience, safety,saving energy amp; physical functions. It works by receivging human motion infrared rays. ow switch on/off your lights, bulb,cfly automatic se infrared pir motion sensor life: more than 5 years stronguse:/strongome, office, shops, hospitals, bathroom, corridor, step, parking area amp.brstrongcontrol standards: /strongperating volt: AC220-250v 50hz-60hz. oad power: upto 300/1200w maxmbient light: 3-2000 (adjuestable)oad type: incandescent lamp, LED light, clf, fansetecting distance: 0~7m etecting angle: 360 degree. nstalltion hight: 2.2-4 M otion detetion speed: 0.6~1M/sower cusumption:0.1W (static) amp; 0.4(Work)orking humidity: less than 93%rhelay: 10 seconds -7 minutes (adjustable) br: 1.Keep Sensor unit 1.8-2.5 M higher from the ground level.. The light, such as incandescent lamp which emits high heat should be kept from the switch aways, or it will be turn on/off voluntarily.. On being fixed to the wire first time, the switch' initialization will take 1-2 minutes. It's natural for the switch to turn on/off voluntarily.. When you install the switch on daytime, the Default State of the switch will make the light off.Keep the detector of the switch from illumination, amp; then the light will turn on. The darker, the switch will be more sensitive. If it is not very sensitive, turn the yellow port counterclockwise with a long and thin tool to get a proper light sensitivity. brstrong/strong