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Seoul Semiconductor subsidiary and a leading provider of UV LED technology, Seoul Viosys, has announced that customer inquiries for its violeds UV LED products, which are ideal for sterilizing bacteria, increased more than five times over the previous month, fueled by concerns over the continuing global spread of the coronavirus (COVID-19).
According to the Ultraviolet Germicidal Irradiation Handbook (Kowalski, W. 2009.Ultraviolet Germicidal Irradiation Handbook, Heidelberg, Germany: Springer-Verlag), one minute of UV-C light will sterilize more than 90% of the coronavirus. In addition, tests conducted by Chinese agencies on air appliances equipped with the violeds UV LED sterilization technology have demonstrated a 97% reduction in airborne virus particles.
With the growing concerns over the global spread of the coronavirus, numerous automotive companies in China are actively reviewing adoption of Seoul’s violeds UV LED technology in sterilization systems for vehicle interiors. In addition, violeds UV LED technology has been used by the US National Aeronautics and Space Administration (NASA) aboard the International Space Station (ISS) to provide a healthy, germ-free environment for astronauts.
Seoul’s violeds UV LED technology has been adopted by Maltani, the largest Korean lighting company, for sterilization lighting applications, and by RGF Environmental Group, the No.1 in-duct air treatment supplier in the U.S., for its [Halo-LED] indoor air quality system launched in November of 2019. In addition, violeds UV LEDs are used in water purifiers from SK Magic Co., Ltd. and Hyundai Rental Care Co., Ltd.
Until recently, many companies have been conservative in their adoption of UV LED technology because conventional UV LEDs typically had a short lifetime (10,000 hours) and high cost. However, Seoul Viosys recently improved the lifetime of their violeds UV LED to more than 50,000 hours, similar to visible LEDs used for general lighting applications, and increased production capacity to achieve cost competitiveness.
