With the development of technology, life has become more and more convenient. We know that most of the stairs use sensor lights, so that people will not feel dark when going up and down the stairs. The following editor will introduce to you what the principle of induction lights is.

1. Infrared sensor lamp, then this kind of sensor lamp is also set by sensing the infrared rays of the human body. Because the general temperature of human beings is about 37°, and it also emits a kind of infrared rays with a fixed wavelength value of about 10 microns. At this time, the infrared sensor lamp can receive the infrared rays emitted by the human body. At this time, it is also possible that the charge will be out of balance, and the charge will be released outward. After the circuit is detected and processed, the switch can be triggered, thereby triggering the sensor lamp. switch.

2. Voice-activated sensor lamps. This kind of lamp is installed more in the living room. This kind of lamp is switched on and off by human voice. Because the human voice has sound waves, when the sound waves travel in the air, they will hit solid objects and vibrate. At this time, the sound control components of the sound control sensor lamp will respond to this vibration, and the switch will be turned on if there is a sound, and the light will be on. On, it will be disconnected if there is no sound. And the on-time of the induction lamp can last for a period of time.

What are the precautions for led human body sensor lights

1. Be sure to choose a reliable sensor lamp brand when purchasing. If it is an infrared sensor lamp, then you must choose to have a hemispherical probe at this time. This type of probe sensor lamp has a wider and more reliable detection area for the human body. In order to make the lamps more beautiful, many manufacturers do not adopt hemispherical probe design, so the sensing area will be relatively narrow.

2. If it is only for indoor use, then at this time there is no need to pursue the sensing distance and buy a microwave induction lamp. If the sensing distance is long, the sensing area may increase at this time, and the light may turn on when you don't need it, causing false touch sensing. Therefore, we should choose the appropriate sensor lamp type according to the occasion when purchasing.

3. If the LED human body sensor light is used outdoors, then you can consider laying out the circuit in advance, and you must pay special attention to the waterproof problem during installation, so as to avoid leaving potential safety hazards.