and high quality. Infrared technology based automatic motion sensor switch. Automatic turn on while detected people come, after the people left delay automatically turn off the lights. Applicable to the corridor, passageway, toilet, basement, warehouse, garage and other places of automatic lighting. Brightness metering: Using photosensitive control, It won't turn on the light in the daytime or strong light environment, Also can adjust free induction lights in any light environment. Random Delay: After it opens, during the delay period if there is no human activities, has the delay time on the job, properly adjust freely within the scope of delay time. Status indication: Induction effective LED indicator, convenient installation and failure analysis. Temperature compensation: With temperature compensation, Reduce the induction distance is influenced by temperature. Automatic locked in day time to save energy. Easy to install or replace existing switch. Good solution for energy save. Model: TDL-2012-DC Working Voltage: 8-30V DC Load: 40A Working temperature:-20 Celsius ~ +50 Celsius Load capacity: LED lighting (for constant voltage/constant current LED light) Sensor angle: Cone angle of 140 degrees Induction distance:7-10m Time extension: 5~480s +/- 30%(Switch can be set up) Colour: white Material: plastic Size: 5.8x4.2x1.3cm Package Contents: 4 x PIR Motion Sensor Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.