What is an Ultra Violet Light？

What is an Ultra Violet Light？

Ultraviolet light, also known as a UV Light, is a light source used for disinfection and sterilization, which belongs to a kind of ultraviolet light with a wavelength of 200~410 nm. Objects exposed to UV rays will become very dry, soft and safe.

The intensity of ultraviolet light is determined by the wavelength and intensity (energy), that is, the ultraviolet light with a wavelength of 365 nm is the strongest, so it is called “UVC”. Among all wavelengths, less than 5% of visible light can penetrate the glass to reach the indoor space and be The human body absorbs, this part of energy is also called “UVA”.

Characteristics of ultraviolet light

Ultraviolet lights are generally made of materials such as glass, plastic or metal, and the lamp tube is composed of a glass tube, tungsten wire and glass. In general, glass UV lamps are more corrosion-resistant than plastic UV lamps, and they are also more resistant to impact.

The main advantage of ultraviolet lights is that they can be sterilized and disinfected without artificial light sources (such as incandescent lamps), and they can kill bacteria and viruses on objects during work.

The use of ultraviolet lights can not only disinfect indoor air and objects, but also disinfect indoor environments, object surfaces, and public facilities.

Ultraviolet lights are used to irradiate and sterilize, and they don’t need too much electricity to drive when they are in use, and can arrive in three ways: one radiation wave (wavelength about 250~300 nm); two radiation waves (wavelength about 100~125 nm); and three radiation waves (wavelength about 300~400 nm) .

Application field of ultraviolet light: Household Disinfection

It is suitable for sterilizing and disinfecting living rooms, mainly used in bedrooms, living rooms, study rooms, kitchens, bathrooms and other places that require ultraviolet disinfection.

In family life, due to its wide range of use, low environmental requirements, and good effect, it is currently the most commonly used indoor sterilization method.

Air disinfection lamps are generally used for sterilization and disinfection at home, usually using ultraviolet lamps + ozone or ultraviolet light for combined use.

Principle of ultraviolet disinfection

The principle of ultraviolet light disinfection is to use ultraviolet light with a wavelength of 254 nm to destroy the DNA or RNA molecular structure of bacteria, viruses and microorganisms, causing them to lose their physiological activity and die.

Ultraviolet rays have a strong destructive effect on bacteria and viruses, and can effectively kill viruses and bacteria. When people or animals come into contact with ultraviolet lamps, symptoms such as skin redness, headache, and fatigue will appear in a short time.

Product classification

Monochromatic: The ultraviolet light tube is a light-emitting diode, which has red, green, blue and other colors, among which green light (UVC) has the shortest wavelength, with a wavelength of 200 nm, and is mainly used for disinfection.

Two-color: The ultraviolet germicidal light is two different light sources, which emit red and blue colors respectively and are superimposed together to make the sterilization effect better.