More than 95% of home appliances on the market use infrared remote control. The working principle of Wholesale universal door remote control on sales:
1.Wholesale universal door remote control on sales The light that people see. The visible light that can be seen by human eyes can be arranged according to the wavelength from long to short, in order of red, orange, yellow, green, cyan, blue, and purple. The wavelength range of red light is 0.62-0.76 μm; the wavelength range of purple light is 0.38-0.46 μm. Light with a wavelength shorter than violet light is called ultraviolet light, and light with a wavelength longer than red light is called infrared light. Wholesale universal door remote control on sales uses near-infrared rays with a wavelength between 0.76 and 1.5 μm to transmit control  signals.
2.Wholesale universal door remote control on sales The commonly used infrared remote control is generally divided into two parts: transmitting and receiving. The main components of the emitting part are infrared light emitting diodes. It is actually a special light-emitting diode. Because its internal material is different from ordinary light-emitting diodes, when a certain voltage is applied to its two ends, it emits infrared rays instead of visible light.