How does the sound control the switch of the light? What is the secret?

Voice-activated light actually adds a sound sensor to the circuit. In fact, this device is somewhat similar to a microphone. As long as the sound is heard, the sound sensor can convert the collected sound waves into electrical signals. Then through the processing of the chip in the circuit, the switch of the lamp can be controlled. Moreover, there is actually an energy-saving device in the voice control light, which is an optical sensor. So it doesn't light up when it hears the sound during the day and only works at night.

Advantages of voice-activated electric lamp It is more convenient to use voice-activated electric lamp. You can turn on the light without any button when you can't see it. And the safety will be higher, because if you want to find the switch in the dark, it will easily fall off. However, with voice control, it is very convenient to turn on the light only by speaking loudly, and it will not turn on the light because of the sound when the light is bright enough during the day, which is more energy-saving and environmentally friendly.

Disadvantages of voice-activated lights If it is at night, the voice-activated lights will become a bit tasteless, because as long as there is a little sound, the voice-activated lights may light up, or passers-by may not really need lighting, because the TV sound or noise of surrounding residents or the horn sound on the road will make the voice-activated lights light up, which will cause a waste of electricity bills and is not very environmentally friendly. Although it is very convenient to use, it will also cause a certain degree of waste of resources.

Comparison between voice-activated lights and manual switch lights Few people will install voice-activated lights at home, because voice-activated lights generally don't last long, and may go out automatically in a few tens of seconds. In public places, the lights will go out when passers-by pass by, which is more in line with the concept of energy saving and environmental protection. So now many corridors and communities will use voice-activated lights. But it will be more economical to use switch lights at home.