UV LED killing lamp germicidal key, why UVC UV lamp to kill?
Driven by the global new crown epidemic, the demand for disinfection products, including UVLED ultraviolet lamps (Ultraviolet, UV), is also climbing. Due to a significant number of users do not know enough about UV disinfection lamps, resulting in some misconceptions about UV LED UV disinfection lamps cognitive still exists. The following are some of the misconceptions consumers have about short-wave UV disinfection lamps.
Misconception 1: UV lamp products can sterilize
Some consumers mistakenly believe that as long as the UV lamp can sterilize sterilization, so much so that some people use 365nm or 395nm UV flashlight or nail lamp for daily disinfection. And in the UVA band nail lamp or UV flashlight can not sterilize the effect. Only in the 200nm ~ 280nm wavelength of ultraviolet light to effectively sterilize bacteria. In order for you to have a more in-depth understanding, here is the first to introduce the knowledge of UV wavelength.
UVA wavelengths are mainly divided into long-wave UVA, medium-wave UVB and short-wave UVC, with UVA wavelengths ranging from 315 nm to 400 nm, mainly used in equipment leak detection, criminal investigation, UV curing, ink printing, nail art, anti-counterfeiting detection and other industrial and consumer fields; UVB wavelengths ranging from 280 nm to 315 nm, commonly used in ultraviolet light therapy for skin diseases, health care In terms of. The short-wave UVC wavelengths used for sterilization are 200 nm to 280 nm.
Why UVC ultraviolet lamps can kill toxins
UVC ultraviolet disinfection lamps can emit the shortest wavelength (200nm ~ 280nm) and the strongest energy of ultraviolet light, short irradiation can destroy the DNA or RNA structure of bacteria, viruses, mold, bacterium and other microbial cells, so that the cells can not replicate and die, to achieve the purpose of sterilization.
Traditional UV disinfection lamp using mercury mercury lamp, its large size, high energy consumption is easy to pollute the environment, UVC LED UV disinfection lamp, small size, low energy consumption, long life, kill bacteria also no chemical residues, safer and more environmentally friendly, more flexible and diversified in product design.
Misconception 2: UVC LED UV lamps can kill bacteria in seconds?
Although short-wave LED UV disinfection lamps can sterilize and disinfect, but to say that the second kill or not rigorous enough, UVLED UV killing lamp sterilization is the key to the correct wavelength and dose.
According to the formula, UV dose (mJ/cm 2) = UVC radiation intensity (mW/cm 2) x time (Sec) can be seen, the greater the radiation intensity of the UVC disinfection lamp, the shorter the sterilization time required will be relatively short. To achieve the degree of sec, it is necessary to increase the light intensity of the UVC LED killing lamp, in addition to different bacteria and viruses and other microorganisms have different UV lethal doses. In the case of SARS virus, for example, it takes 30 minutes of irradiation with a light intensity of 90 μW/cm 2 (equivalent to 0.09 mW/cm 2) to kill the SARS virus; and to achieve a second-kill level, the radiation intensity of the UVC disinfection lamp needs to be increased to 90,000 μW/cm 2 (i.e., 90 mW/cm 2).
Shenzhen Tacway Technology Co., Ltd. developed and produced disinfection products, can achieve an hour to disinfect the entire room, sterilization rate of 99.99%, but also to achieve APP connection operation. In addition, we are equipped with a one-year warranty to ensure product quality, lamp life up to 12000 hours!