LED UVC Light, The Germicidal Light That Can Create Better Life
by YAHAM | Apr 21, 2020 | Lighting products |
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Physical Germicidal Choose-LED UVC Light
In 2019, the COVID-19 broke out and gradually spread widely around the world. At present, it has caused millions of infections and the death toll has exceeded 100,000. The areas with high mobility and high concentration of personnel are regularly disinfected by chemical disinfection, but this method requires a lot of labor and high cost. LED UVC light(or LED UV germicidal fixture) adopts the physical germicidal way which makes sterilization more convenient. Below we will introduce the relevant information of LED UVC light to help you know about this germicidal choose.
Map of the COVID-19 verified number of infected per capita as of 20 April 2020
What Is LED UVC Light
LED UVC light is the lighting fixture that use LED chips which can emit germicidal ultraviolet(UVC) light.
Ultraviolet(UV) light is part of the electromagnetic spectrum and belong to the area between visible light and X-rays. The invisible radiation includes wavelengths from 100 nm to 400 nm. UV light can be subdivided into four separate region:
1. Ultraviolet A (UVA)
• Wavelength: 315nm-400nm
• Note: Long-wave. Black light. Least harmful type.
• Application areas: suitable for printing, curing, lithography, sensing and medical applications
2. Ultraviolet B (UVB)
• Wavelength: 280nm-315nm
• Note: Medium-wave. Cause sunburn and increase the risk of skin cancer.
• Application areas: suitable for curing, tanning and medical applications.
3. Ultraviolet C (UVC)
•Wavelength: 100nm-280nm
• Note: Short-wave. Decompose the nucleic acid in microbial cells to sterilize.
•Application areas: for disinfection and sensing
Most natural UV light are produced by the sun, about 10% of sunlight is UV light. Only 3% to 4% of UV light penetrate the atmosphere to reach the ground. Of the UV light that reaches the earth, 95% is UVA and 5% is UVB. The sun has no measurable UVC to reach the surface of the earth.
How do LED UVC light can kill viruses and bacteria?
UVC light inactivates the DNA and RNA of bacteria, viruses and other pathogens, destroying their ability to reproduce and cause disease.
DNA and RNA are the genetic material that constitutes an organism and controls its growth, development and reproduction. DNA and RNA absorb radiation at UVC wavelength, which alters genetic material, causing mutations or cell death and failure to reproduce, resulting in inactivation of viruses or bacteria.
Can LED UVC light kill the COVID-19 virus?
The structure of COVID-19 virus is different from previous viruses. Therefore, there is not enough data to ensure the UVC light can kill COVID-19 virus.
According to scientific theory, COVID-19 virus belongs to the category of "enveloped virus" or category 3, and category 3 viruses are the easiest to kill. The LED UVC light that can kill more resilient viruses such as small and large non-enveloped viruses (grade 1 and 2 viruses) should also be able to kill enveloped COVID-19 virus.
Why choose LED UVC Light?
1. Broad-spectrum sterilization
Tests have shown that UVC light can kill 99.9% of bacteria and viruses. The most important thing is that pathogens cannot be resistant to UVC light like some antibiotics and antibacterial products. So that the environment after anti-virus is more healthier.
2. Physical disinfection, no secondary pollution
The LED UVC light is a physical method to kill bacteria and viruses, which can replace some potentially harmful chemical method. After the LED UVC light finish working, it is safe to enter the sterilized room, but it may be difficult to breathe in the room where the chemical has just been sprayed.
3. Movable
There are many lighting configurations for LED UVC lights, including mobile type. The mobile type of LED UVC light allows the germicidal fixtures to be easily moved between different rooms. Mobile type is an excellent choice for hospitals, classrooms, offices and hotels.
4. Smart
The LED light already has a mature smart lighting system, which can automatically turn on and off by sensing personnel. You can also set the working time to make the LED light work automatically. Because the short-wave radiation emitted by LED UVC light has impact on human, it is necessary to avoid direct exposure of personnel to UVC light. The LED UVC light can be equipped with a sensor module. When the light senses the arrival of a person, it will automatically turn off to ensure the safety of the person.
Precautions for using LED UVC light
Long-term direct exposure to UVC light may cause temporary eye and skin damage. Therefore, when LED UVC light is working, please try to avoid people, animals or plants in the room. If people need to stay while LED UVC light is working, please take protective measures on eyes and skin from UVC radiation
1.Eye protection: use UV goggles and full-face shields.
2.Skin protection: because UVC light is easily absorbed by clothing, plastic or ordinary glass, if people need to enter the room to maintenance, service or other situations during UVC light is working, it is recommended to wear personal protective equipment that can cover all exposed areas.
LED UVC light from Yaham Lighting
The Rana series LED UVC light from Yaham Lighting adopts high-quality LED UVC chip to ensure the sterilization effect. And there are three installation methods to meet the two different needs of fixed installation and portable mobile.
Rana series LED UVC light adopts quartz glass to ensure that UVC light can penetrate. Quartz glass has an excellent transmittance in the continuous wavelength range of ultraviolet to infrared radiation. While the ordinary glass with high iron content will block more than 90% of ultraviolet rays with a wavelength less than 300nm. Therefore, professional LED UVC light will use quartz glass to ensure excellent sterilization effect.
In order to ensure that personnel will not be accidentally exposed to UVC light and cause injury, Rana series LED UVC light also has intelligent sensing function, which can realize that the light turn off automatically when the people arrives, and turn on when the people leave. At the same time, Rana series LED UVC light also has the function of time switch and remote control switch.
