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LED Ufo Grow Lights 150 Watt Ip65,In all kinds of ultraviolet band, only ultra short ultraviolet UVC has the function of sterilization.When bacteria, viruses and other organisms with ultrashort ultraviolet radiation, the wavelength of 254 nm super short ultraviolet ray can be these microbes pyrimidine and purine absorption of nucleic acid, prompting some light polymerization of nucleic acid bases by two way, undermining deoxyribonucleic acid (DNA) in the microbial cells and the molecular structure of ribonucleic acid (RNA).When DNA is destroyed, nucleic acids are difficult to replicate, and even if they can, they are often defective, making it impossible for bacteria to survive.In addition, when using multi-wavelength ultra-short ultraviolet light to irradiate microorganisms, ultra-short ultraviolet light may also affect aromatic amino acids, and then affect the structure and function of proteins, so that bacteria cannot survive.Uvb is a well-established disinfection method that can be used to kill many pathogens, including potential bioterrorist agents that cause diseases such as anthrax, smallpox, viral haemorrhagic fever, pneumonic plague, bubonic plague, endemic fever, drug-resistant tuberculosis, influenza pandemic and severe acute respiratory syndrome.Due to its bactericidal effect on microorganisms, the use of uv has also been extended to the food processing industry, sewage purification, disinfection of ventilation and air-conditioning systems, disinfection of rooms and surfaces, and the killing of water-borne human pathogens (bacteria, viruses and protozoa).In the field of food processing, ultraviolet light has shown great potential in surface disinfection of fresh-cut fruits and vegetables, slowing the rate of deterioration of fruits and vegetables, extending their storage life, and becoming an effective substitute for chemical fungicides such as titanium dioxide (TiO2) and chlorine.Ultraviolet lamps are effective against a variety of microorganisms and do not produce chemical residues or other byproducts, do not affect the water quality, so can be used in sewage treatment.There are also companies that install ultraviolet lights on faucets and water fountains.Another important use of ultraviolet light is air disinfection.A variety of fungi, bacteria and viral pathogens may be transmitted through airborne droplets, such as mycobacterium tuberculosis, influenza virus, SARS coronavirus, aspergillus and other legionella bacteria, ultraviolet lamp irradiation for 30 minutes can effectively reduce the concentration of microorganisms in the air.So in addition to the widely used ultraviolet lamps in surgery rooms and microbiology laboratories, the installation of ultra-short ultraviolet lamps in air handling units and ventilation systems can also reduce the concentration of airborne bacteria, fungi and viruses in indoor air.The initial success of air disinfection in surgery rooms stimulated the application of ultra-short ultraviolet rays in hospitals.For example, ultra-short ultraviolet lamps in infant wards and neonatal intensive care units can prevent respiratory infections;Ultra-short ultraviolet rays can also be used to reduce colonization of microorganisms in the trachea and to treat respiratory related pneumonia.Once the potential for ultraviolet light to kill microbes such as bacteria, viruses and fungi was understood, there was growing interest in improving the use of ultraviolet light.
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