Operating Voltage and Current Rating: the supply voltage of PIR controller is 12 V to 24 V, and the electric current is 6 A; Please confirm the relevant parameters before use to ensure safety Adjustable Detention Period: the sensing distance of the PIR motion sensor is about 5 m/ 16.4 ft to 8 m/ 26.25 ft, and there is a time setting button at the back of the controller, which can be rotated to set the delay minutes of turning off the switch from 1 to 10 minutes Operating Principle: the working principle of the PIR sensor, whose sensor sensing angle of view is 120, that the load switch is controlled by the infrared detecting mode, is simple, and you can install the sensor in the proper environment according to your actual needs Easy to Install and Use: connect the load cables first and then the power cables, to ensure that there is no short circuit between the cables of the infrared motion light switch before powering on the device, and then set the delay time; When a person is detected, the load light is turned on, and when the person is away for a set number of minutes, the load light automatically goes off Compact and Lightweight: the waterproof infrared motion detector made of quality plastic measures approx. 7.5 x 3 x 2 cm/ 2.95 x 1.18 x 0.79 inches, and the right size makes it easy to use or store the detector at some places you want with saving space Notes: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays.