With the deepening of LED research and development, LED technology innovation and application areas continue to expand, and the LED market is becoming wider and wider. UV LED has gradually entered our vision. For the general public, the right amount of ultraviolet light is also the necessary light wave for our body. Now let's find out what areas UV LED is mainly used in. The so-called Ultraviolet Rays/ (UV) refers to the visible light of the sun's light (red orange, green and blue, blue and blue purple), and the naked eye outside the purple. Ultraviolet radiation is the general term of the electromagnetic wave spectrum from 10nm to 400nm radiation. According to the different wavelengths, ultraviolet radiation is generally divided into A, B, C three bands, specifically as follows: UVA 400-315 nm, UVB 315-280 nm, UVC 280-100 nm. Corresponding to different wavelengths, specific applications are different. In the application of UVLED market, UV-A occupies a large market share of Zui, up to 90%. The main application market of Zui is curing, involving nail, tooth, ink printing and other fields. In addition, UV-A also introduces commercial lighting to make white clothes look cleaner. As for UV-B and UV-C are mainly used in sterilization, disinfection, medical phototherapy, etc., of which UV-B mainly medical, UV-C is sterilization and disinfection. In addition, UV LED is recognized from paper banknotes, applied to the hardening, insect trap and printing of light resin, and the development of biological medicine, anti-counterfeit identification, air purification, data storage and military fields in the market of sterilization and disinfection. The application field of 1. light curing system UVA band is typical application of UV curing and UV ink-jet printing, the representative wavelength is 395nm, 365nm, UV LED UV curing application includes the UV adhesive curing in the display, electronic medical, instrument and other industries; the curing of the UV coatings in the building materials, furniture, household appliances, automobiles and other industries; printing and packaging UV ink curing in the industry and so on... Among them, the UV LED decoration panel industry has become a hot spot. The advantage of Zui is that it can produce zero formaldehyde green plate, and energy saving is 90%, the production is big, the coin scraping, the comprehensive benefit economy and so on. This indicates that the UV LED curing market is an all-around and full cycle application product market. 2. skin care in medical field: an important application in UVB band is skin treatment, namely ultraviolet phototherapy. Scientists have found that ultraviolet light in the wavelength of 310nm has a strong black spot effect on the skin. It can accelerate the metabolism of the skin and enhance the growth of the skin. Thus, it can effectively treat the light skin diseases such as pityriasis rosea, multiform solar rash, chronic actinic dermatitis and prurigo ray. So it is in the medical industry. Phototherapy is now getting more and more applications. Medical devices: UV glue bonding makes it easier to assemble medical devices economically and automatically. Now, the advanced LED UV light source system can solidify the solvent free UV glue for a few seconds, as well as the glue system to make the medical device assembly process an effective and economical method of forming a consistent and repetitive bonding. 3. the ultraviolet ray of UVC band in the field of sterilization and disinfection can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in the cell of microorganism (bacteria, virus, spore and other pathogens) in a short time, and the cell can not be regenerated, and the bacterial virus loses the ability to replicate itself, so UVC Band products can be widely used for sterilization and disinfection, such as water and air. At present, some deep ultraviolet application products on the market include LED deep ultraviolet portable disinfector, LED deep UV toothbrush sterilizer, deep ultraviolet LED contact lens cleaning sterilizer, air sterilization, clean water sterilization, food and surface sterilization. With the improvement of people's awareness of safety and health, the demand for these products will be greatly increased, thus creating a larger market. The 4. military field, due to the UVC band, belongs to the daily blind ultraviolet band, so it also has important applications in military, such as short range ultraviolet secure communication, ultraviolet interference, ultraviolet warning technology and so on. Ultraviolet (UV) communication: ultraviolet communication is a new communication mode with great potential for development. It has the advantages of many other conventional communication methods, such as low eavesdropping rate, high anti-interference, low position discrimination, all-weather work and so on, so it is widely paid attention to the departments with high communication security and high mobility requirements. Ultraviolet (UV) interference: the appearance of UV Dual Color guidance will inevitably lead to the development of infrared ultraviolet dual color interference technology. The key of UV interference is to study the ultraviolet radiation enough to be added to make the interference bomb with the ability of ultraviolet interference. Ultraviolet (UV) warning: the ultraviolet alarm is to detect the target by detecting the ultraviolet (UV) radiation from the tail flame, which lists the radiant characteristics of the tail flame using different fuels at the low altitude. Active alarm based on radar and passive alarm including infrared, laser and ultraviolet (UV) alerts. 5. according to Liu Wenke, a researcher of the Institute for agricultural environment and sustainable development of Chinese Academy of Agricultural Sciences, closed type soil free cultivation is easy to cause the accumulation of self toxic substances, and TiO2 photocatalytic degradation matrix for the cultivation of root exudates and rice hull degradation products in the nutrient solution, only 3% ultraviolet light and facilities covered by sunlight. Over 60% of the cover material, such as glass, can not be used in the facilities. The low temperature and low temperature in the winter vegetable cultivation in the season can not meet the needs of the factory vegetable production. We have developed an artificial light TiO2 photocatalytic system suitable for the use of protected horticulture in soilless culture, especially for plant factories.