LED household germicidal light as a disinfection method is not a new technology that has only recently appeared. In view of the fact that UV disinfection is invisible and intangible, it is understandable for consumers to feel that there is no effect psychologically. But after understanding the principle of LED household germicidal light disinfection, there will be no such worries.

Let's start with a simple science popularization: UV is divided into UVA (320-400nm), UVB (280-320nm) and UVC (100-280nm) according to the wavelength. Among them, UVC is outside the wavelength, LED household germicidal light emits ultraviolet light to destroy the DNA or RNA molecular structure of microbial cells, allowing bacteria or viruses to die, achieving the effect of sterilization and disinfection.

According to research, UVC ultraviolet light has the strongest bactericidal effect at a wavelength of about 250-260nm. Therefore, the LED household germicidal light we are talking about is also mainly UVC deep ultraviolet sterilization.

However, due to the wavelength and energy efficiency, the current LED household germicidal light used for medical sterilization mainly comes from ultraviolet mercury lamps. In the mercury lamp, mercury (mercury) is added to the vacuum quartz tube, and the discharge is carried out by the voltage difference between the two ends of the electric shock, and the ultraviolet radiation wave is excited, and then the wavelength is changed by the fluorescent paint inside the tube. However, the ultraviolet mercury lamp has serious environmental pollution because of its mercury content.