It can automatically turn on the lighting and turn it off after people leave, preventing man-made waste of energy, prolonging the service life of electrical appliances, and integrating energy saving, convenience and safety.
In fact, it is an automatic switch control circuit, and there are many kinds. The closing (i.e. turning on the light) modes of the switch are voice control, trigger, induction and light control, and the opening modes are basically the same, which are controlled by the delay circuit (automatically closing after working for a period of time). ?
Extended data:
Functional characteristics
1, an automatic control product based on infrared technology, when someone enters the sensing range of the switch, the special sensor detects the change of the infrared spectrum of the human body, and the switch automatically turns on the load. People never leave, and the switch keeps turning on; After people leave, the switch will automatically turn off the load after a delay, and the lights will be on when people are away, which is friendly, convenient, safe and energy-saving.
2, with zero-crossing detection function: contactless electronic switch, extending the service life of the load.
3, the application of photosensitive control, automatic metering switch, no induction when the light is strong.
4. Power saving: According to the calculation of two households with one staircase corridor lamp, the average annual electricity bill for each household is less than 2.00 yuan.
5. Safety: adopting infrared sensing technology, no sound and no touch, ensuring people to go to bright areas and dark areas, effectively improving the quality of life and safety of modern residential areas.