There are many kinds of artificial ultraviolet light sources, such as UVC LED, gas arc (low pressure mercury arc, high pressure mercury arc), ultraviolet has the function of sterilization and disinfection, removing mites, which is closely related to life. Its chemical action can make the photographic plate sensitive, and its fluorescence effect is strong. Fluorescent lamps, fluorescent lamps of all kinds, and black lights used in agriculture to trap and kill pests, emit light by using ultraviolet light to excite fluorescent substances.

 

 

Ultraviolet lamp uses low-pressure mercury lamp to concentrate more than 95% of the energy wavelength of 253.7 nanometers ultraviolet, excitation lamp wall coated phosphor, produce visible light. Belongs to THE C band ultraviolet ray, namely UVC.

 

UVC deep ultraviolet sterilization can quickly start sterilization through ultraviolet radiation, there is no possibility of secondary pollution. Therefore, its advantages are environmental protection and efficient, and there is no potential safety hazard. Therefore, it has been adopted in many fields, such as water sterilization field, light field, air sterilization field, medical field and so on.

 

UVC can penetrate the cell membrane and nucleus of organisms, destroy the molecular structure of DNA or RNA in microbial body cells, resulting in the death of growing cells or regenerative cells, so as to achieve the function of sterilization and disinfection.

 

The elimination time of deep ULTRAVIOLET UVC-LED is generally from ten seconds to three to five minutes, which can eliminate a variety of common pathogenic bacteria. Moreover, due to the small size of UVC-LED beads and high daily portability, it is also convenient for the use of products. Mercury lamp sterilization time is generally in more than ten minutes to half an hour, to achieve a good sterilization effect, and mercury lamp due to its high pressure will produce ozone, power consumption, sterilization time is long, heavy equipment and other reasons, limited in the scope of daily use, will eventually be eliminated by history.