Blackt Electrotech PIR Motion SesnorThe Product is new Energy Saving Device, it adopts good sensitivity detector, integrated ckt. It gathers automatism, convenience, Safety,Saving energy & physical functions. It works by receivging Human motion Infrared rays. Now Switch ON/OFF your Lights, Bulb,CFL, etc by AUTOMATIC Use INFRARED PIR MOTION SENSOR Life: More than 5 yearsUse:Home, Office, Shops, Hospitals, Bathroom, Corridor, Step, Parking area & etc QUALITY CONTROL STANDARDS: Operating Volt: AC 220-250V 50Hz-60Hz. Load power: Upto 300/1200W MaxAmbient Light: 3-2000 (Adjustable) Load type: Incandescent lamp, LED light, CLF, fans, etc Detecting distance: 0~7M Detecting Angle: 360 Degree. installation Hight: 2.2-4 Mtr Motion Detetion Speed: 0.6~1m/sPower Cusumption:0.1W (static) & 0.4(Work)Working Humidity: less than 93%RH Delay: 10 Seconds -7 Minutes (Adjustable) PRODUCT INSTALLATION: 1.Keep Sensor unit 1.6 Mtr higher from the ground level. 2. 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. 3. 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. 4. 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, & 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 Dimensions: 11.1*11.1*5.2cm . PACKAGE INCLUDES: 2 x Infrared Switch Board 2 x Wall /Celing fitting Plate 2 x Instionas Manual 4 x Mounting Screw Bill Best Technical Support after Selling.