In our life, we often divide ultraviolet light into UVA, UVB and UVC.

UVA wavelength 320 ~ 420nm, also known as long wave dark spot effect of ultraviolet, it has a strong penetration, UVA can direct to the dermis of the skin, destroy elastic fibers and collagen fibers, the skin tanning.

 

UVB wavelength 280 ~ 320nm, also known as the middle wave erythema effect of ultraviolet, has a erythema effect on the human body, can promote mineral metabolism in the body and the formation of vitamin D, but long-term or excessive exposure will make the skin tanned, and cause redness and peeling.

 

UVC wavelength 200 ~ 275nm, also known as short-wave sterilization ultraviolet. It has the weakest penetration ability and cannot penetrate most transparent glass and plastic. Sunlight contains shortwave ultraviolet rays that are almost completely absorbed by the ozone layer.

 

 

【 Traditional sterilization -- mercury lamp 】

 

In daily life, many germicidal lamps use mercury lamp sterilization, its working principle is: in the vacuum of quartz tube to add a quantitative amount of high purity mercury, by providing a voltage difference (pressure drop) to both ends of the electrode, resulting in ion discharge, resulting in ultraviolet radiation, is short for ultraviolet lamp. This lamp is mainly used to use the characteristics of ultraviolet light for photochemical reaction, product curing, sterilization, medical inspection and so on.

 

Mercury lamp sterilization is the most widely used sterilization method at present, but it contains mercury, if leaked into the air will exist for a long time, can be transmitted through the atmosphere long distance, accumulation in the biological body to form chronic metal poisoning. After a total ban on mercury, a product that can replace traditional mercury lamps will be needed, and UV lamps are the best choice. With the increasing attention paid to UV LED curing technology, the traditional mercury lamp light source is gradually replaced by UV LED light source in many application fields.

 

 

【 UV sterilization -- UVC LED】

 

So how does UV play a role in killing?

 

Scientists have found through a large number of experiments that the DNA/RNA in the bacterial virus body will absorb part of the UVC band ultraviolet light, causing growth cell death and/or regenerative cell death, to achieve the effect of sterilization.

 

 

UVC-LED has the advantages of small power consumption, fast start, long life, small size, good sterilization effect, etc. The key UVC-LED will not produce secondary pollution during use, high environmental performance, therefore, UVC-LED is favored by more consumers, deep ultraviolet UVC-LED disinfection is a rare new sterilization method to replace traditional mercury lamps.

 

Deep ultraviolet UVC-LED sterilization high-power lamp beads, in a small closed space, the kill time is generally ten seconds to three to five minutes, you can eliminate a variety of common pathogens, due to the small size of the UVC-LED lamp beads, low requirements for power line adaptation, ordinary charging treasure can be opened, outdoor or travel commuting can be used, high daily portability. The ultraviolet mercury lamp requires killing time is generally more than ten minutes to more than half an hour, in order to achieve a good sterilization effect, but the mercury lamp will produce ozone due to its high pressure, large power consumption, long sterilization time, and heavy equipment.

Qingdao fluorescent UV disinfection products mainly include air sterilization, surface sterilization, water sterilization, medical sterilization and other products. The company has a professional post-doctoral team, focusing on the research of ultraviolet sterilization applications, after years of deep cultivation of the ultraviolet industry, the company has obtained a number of national invention and utility model patents. At present, a number of sterilization module products have been put into the market. For more details, please visit the company's website www.qdyingguang.com to contact the company or follow the wechat public account.

 

220nm 222nm 230nm 235nm 240nm 245nm 250nm 255nm 260nm 265nm 270nm 275nm 280nm 280nm 290nm 295nm 300nm 305nm 308nm 310nm  315nm 320nm 330nm 335nm 340nm 365nm 395nm 405nm smd3535 3535led 3535 uv led smd6868 6868 led 6868 uv led TO39 TO46  UVWORKS UV works uvcworks UVCworks UVA LED UVB Led uvc Sensor Uvdetector UVSensor Uvdetector UV detector detector Deep UV LED UV sterilization UV sterilization UV sterilization UV sterilization UV sterilization solution UV module UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer UV sterilizer Sterilizer UV sterilizer Sterilizer UV sterilizer Sterilizer Surface sterilization water sterilization air sterilization light treatment uv sensor uv sensor UV sensor UV sensing module Water quality detection Gas detection UV curing UV monitoring probe UV disinfection dose monitoring UV photoelectric detection and calibration Water treatment UV probe UV probe UV probe UV probe UV probe UV probe UV probe UV probe UV probe UV probe Detection probe