1. With high sensitivity, it can detect changes in the infrared spectrum of human activities, so that the switch automatically turns on the load. During the delay time, if someone moves within the effective sensing range, the switch will continue to turn on until the person leaves. The load is automatically turned off at the time, and the intelligent control function that the lights are on when people come, and the lights are off when people go. 2. The time-lapse color segmented toggle switch selection of this product is 16, 32, and 262 seconds. 3. The delay time is adjustable, and the required delay time can also be adjusted within the delay range at will. Technical parameter: 1. Scope of application: energy-saving lamps, LED lamps, incandescent lamps 2. Working voltage: AC85-250V (50/60Hz) 3. Induction angle: 120 degree cone angle 4. Induction distance: 2 meters-6 meters 5. Load power: 50W 6. Static power consumption: 0.012W 7. Ambient temperature: -20+45 8. sensitivity:155LU 9. The delay time is adjustable: 255 seconds. 10.Colour:White 11.Material:PC 12.Size:86 x 86 x 40mm Scope of application: It is suitable for stair walkways, fire passages, public walkways, anti-theft alarms, and places where automatic switches are required to control lighting. Precautions 1. Wiring mode: Wiring according to the instructions on the back of the switch, overloading is strictly prohibited. 2. The installation must be performed by a professional electrician, please follow the wiring installation ; the distance between the switch and the lamp should be 0.5 meters. 3. Do not operate with electricity, turn on the power after installation is completed. 4. If the load does not work, first check whether the circuit is correct and the load isnormal, and then check whether the internal fuse of the switch is damaged. Package Contents: 1 x E27 LED Bulb Light Holder 1 pack x mounting screws 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.