Tianhui- one of the leading UV LED chip manufacturers and suppliers provides ODM/OEM UV led chip service.

How Does 270 280nm UVC LED Disinfection Technology Work?


One component of the electromagnetic spectrum, known as UV light, has a wavelength of nanometers (nm). Because of the density of its wavelength, ultraviolet light—invisible to the human eye—is a powerful disinfectant. Ultraviolet light comes in four wavelengths: UVA LED, UVB LED, UVC LED, and Vacuum-UV.

● Blacklight, or UVA, has the longest wavelength of any light wave, which falls between 315 and 400 nanometers.

● UVB, or the medium wavelength, falls between 280 and 315 nanometers.

● UVC rays have the shortest wavelengths, spanning 200 to 280 nanometers.

● As a disinfectant, UVC LED is efficient against microorganisms, including viruses and bacteria, because it is germicidal.

What is a UVC LED?

Multiple layers of substrate materials make up light emitting diodes (LEDs), which are semiconductor devices. They can be engineered to emit photons in the UVC range, which may be utilized to inhibit bacterial multiplication when a wavelength is inputted. 

UV-C LEDs are similar to traditional mercury-vapor lamps in that they produce light but offer significant advantages. Some of them are:

● Sustainable compared to traditional UV lights, which utilize expensive heavy metals and are a pain to dispose of properly.

● LEDs are far smaller than mercury-vapor equivalents, making them easily incorporated into cutting-edge new designs.

● The warm-up period, which is sometimes a limitation of mercury-vapor lamps, is unnecessary with UVC LEDs since they are instant-on/instant-off.

● You may cycle the light as many as you like since the number of on/off cycles does not affect the lifespan of the LEDs.

● Emitting photons from a separate surface from their heat emissions allows LEDs to be temperature-independent. It is possible to manufacture them in a way that prevents the transmission of heat while using UV-C LEDs for water purification.

● One of the finest things about UVC LEDs is that users may adjust the settings to pick a wavelength that the selected microbe absorbs the light at the highest possible rate.


Functioning of 270-280nm UV LED (UVC) Disinfection

The effectiveness of UVC LED disinfection varies with the size of the solution. The basic principles of 270nm LED, 280nm LED disinfection, however, have not changed. A small amount of power is all it takes for an LED to emit light at a certain wavelength. Subsequently, the LED releases UV-C photons into the water, which enter the cells and cause DNA damage to the microbe.

The dangerous microbe becomes inert because these cells cannot multiply. Consequently, LOGs are a measure of how successful the high-intensity radiation from UV-C LEDs is in killing the bacteria. This process takes just seconds.

The capacity to treat water and air without dangerous chemicals has helped propel UV LED disinfection technology to the forefront of water and air treatment throughout the last 20 years. On the electromagnetic spectrum, ultraviolet light (UV) has wavelengths in the middle of the visible light and x-ray bands.

Cells become microbiologically inactive or sterile when ultraviolet-C light enters and damages the nucleic acid. The sun's ultraviolet (UV) rays do this same thing in nature.

Application of 270-280nm UVC LED Disinfection Technology

Sterilization of Packaging Containers

To avoid contamination and maximize product shelf life, it is essential in the food and beverage business to guarantee the sterility of containers, bottles, and caps. Using 270nm LED, 280nm LED technology, these objects may be disinfected quickly without chemicals. This is especially helpful for things that are sensitive to chemical residues. In most cases, this entails exposing the packing materials' surfaces to ultraviolet C radiation, which kills germs and viruses.

Sterilization of Food Surfaces and Food Production Line

To decrease the likelihood of food poisoning, 270-280nm UVC LED disinfection are used to sanitize the surfaces of food products as they are manufactured. The capacity to disinfect without changing the texture, flavor, or look of the food is a major benefit of this non-thermal sterilization technology. It works well for sterilizing raw items like fruits and vegetables that aren't ready for the oven yet.

Cosmetics Manufacturing Line Air Sterilization

To avoid contamination of the finished cosmetics, it is crucial to maintain sterile air conditions throughout manufacture. A continuous disinfection of the air passing through the manufacturing plant is possible by integrating 270-280nm UV LED (UVC) systems into air handling machines. To keep cosmetics safe and undamaged, this aids in regulating the development of microbes in the air and on surfaces.

Water Sterilization and Disinfection

By offering a chemical-free way to cleanse sewage and purify drinking water, 270nm LED, 280nm LED technology is transforming the water treatment industry. Light with a UV-C wavelength kills bacteria and other potentially dangerous microbes in water. This technology is a great choice for water treatment facilities since it is very effective, ecologically benign, and does not generate dangerous by-products.

270nm LED For Water Sterilization and Disinfection

Oral Therapy

Dental offices utilize ultraviolet-C light emitting diodes 270-280nm UV LED (UVCs) to disinfect work surfaces and dental tools to avoid patient-to-patient transmission of germs. As an additional use, this technology can disinfect the oral cavity during oral treatment, which might decrease bacterial load and prevent illnesses.

Treatment for Skin Conditions

Dermatologists use UVC LED disinfection technology to treat various skin problems, such as acne, eczema, and psoriasis. Without harming the healthy skin around it, UV-C radiation may decrease inflammation, kill germs, and speed healing by specifically targeting the damaged regions.

Disinfecting Surfaces in the Environment

In order to stop the transmission of illness, UV-C LEDs are disinfecting surfaces in public and healthcare facilities. Sterilizing frequently touched objects is an important part of this process. This includes doorknobs, furniture, counters, and more. Using portable or stationary UV-C LED bulbs, you may quickly disinfect these regions without using chemical disinfectants.

Air Disinfecting

270-280nm UV LED systems are either included in HVAC systems or used independently as air purifiers to cleanse the air in places like schools, hospitals, workplaces, and public transportation. This method effectively neutralizes airborne germs, hence reducing the spread of illnesses.

Medical Equipment Sterilization

Strict sterilization methods are necessary for medical equipment and instruments. Sterilizing medical tools using UV-C LEDs is quick, effective, and chemical-free to reduce the risk of hospital-acquired illnesses while protecting patients.

280nm LED For Medical Equipment Sterilization

Looking for a reliable supplier? Tianhui offers a comprehensive variety of UV LED products, including lamp beads, modules, and OEM solutions. Our products cover the UVC, UVB, and UVA wavelengths from 240nm led to 430nm led nanometers. Visit our website to learn more.


Uses and Benefits of UV LED 255-260nm
UV Technology Transforming Lives! Exploring the Miracles of the Future
recommended for you
no data
Get in touch with us
one of the most professional UV LED suppliers in China
You can find  us here
2207F Yingxin International Building, No.66 Shihua West Road, Jida, Xiangzhou District, Zhuhai City,Guangdong, China
Customer service