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What is the difference between UVA, UVB and UVC?


If you're someone searching for UV LED applications, we're sure you've come across three different wavelength bands of UV lights. These three different wavelengths of UV lights are probably why you ended up reading this article - learn more about these three different wavelengths of UV and find out which is better.

If this is the case, then you are in luck. Below we've rounded up all three different wavelength bands of UV LED that might be best for your water purification.

What are the bands of UV LED lights?

What is the difference between UVA, UVB and UVC? 1

UV LED lights are divided into three bands: UVA, UVB and UVC. UV LED in different bands are different in many different fields. The breakdown below will help you evaluate the differences between each so you can decide which one is right for your needs.

1. Long wave UVA

One of the most common types of ultraviolet light, with a wavelength of 320-400nm, has the best penetration. UVA has strong penetrating power and can effectively penetrate transparent glass or plastic. At the same time, it activates tyrosinase, resulting in immediate melanin deposition and new melanin formation, resulting in darker, less radiant skin. UVA can cause long-term, chronic and lasting damage and prematurely age the skin, so it is also known as the aging rays.

It is used in 3D printing, printing and painting, glue curing, attracting mosquitoes and insects, air purification, deodorization and deodorization, ore identification, stage decoration, money detection and anti-counterfeiting.

2. Medium wave UVB

The wavelength is between 280 and 320 nm, also known as medium wave erythema effect ultraviolet. Medium penetrating power, its shorter wavelength part will be absorbed by transparent glass, most of the medium-wave ultraviolet rays contained in sunlight are absorbed by the ozone layer, and only less than 2% can reach the earth's surface, which is especially strong in summer and afternoon.

UVB is mainly used in medical instrument detection and analysis, skin treatment, physiotherapy phototherapy, promotion of vitamin synthesis, plant growth lights and other fields.

3. Shortwave UVC

The wavelength is between 100 and 280 nanometers, also known as short-wave sterilization ultraviolet rays. It has the weakest penetrating ability and cannot penetrate most transparent glass and plastics. The short-wave ultraviolet rays contained in sunlight are almost completely absorbed by the ozone layer and are absorbed by the ozone layer before reaching the ground. However, its UV radiation intensity is the strongest, which can quickly and effectively destroy the RNA and DNA of the virus to achieve the purpose of sterilization.

Shortwave UV is widely used in hospital space disinfection, air conditioning systems, elevator sterilization, disinfection cabinets, water treatment equipment, water dispensers, water purifiers, sewage treatment plants, swimming pools, food and beverage processing and packaging equipment, food factories, cosmetics factories, milk Products factories, breweries, beverage factories, bakeries and cold rooms, etc.

What is the difference between UVA, UVB and UVC? 2

What are the best UV LED products you can get?

If you're looking for some excellent quality UV LED products, don't worry, because this article has that information for you too. Tianhui is one of the most complete production companies for UV LED applications in the world. UV Led manufacturers have not only curated some of the best UV LED products on the market, but have left many of their customers completely satisfied. This is one of the reasons why all of our reliable clients not only keep coming back, but also recommend us to others. Find out below if you want to see what some of our best products are.

1. Flowing water dynamic UV LED sterilization and disinfection


UVC LED lights are known to clean water by killing unwanted microorganisms and making it drinkable. Once installed, the flowing water dynamic sterilizer will clean the flowing water before it reaches the faucet or dispenser. As a result, every drop of water flowing directly from your main tank is filtered and free of microorganisms.

2. Air purification UV LED module


While safe water is required, it is also important to breathe clean air. Therefore, using Tianhui's air purifying UV LED module, you can not only ensure that you are breathing fresh air, but also keep your body healthy.

What is the difference between UVA, UVB and UVC? 3


We hope this article clears up all your worries about UV LEDs. If you're looking for some UV products for your home, we know where to go.

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