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Japanese NICHIA has achieved its highest power conversion efficiency for its 280nm UV-C LED

Japanese NICHIA has launched a high radiant flux density UV-C LED that can help target the inactivation and sterilization of various bacteria and covid-19 virus.
The 280nm NCSU434B UV-C LED has the highest power conversion efficiency for a size of 3.5mm x 3.5mm , demonstrating a typical radiant flux of 62mW with an input power of typical 350mA/5.7V . In high-density mounting, the radiant flux per unit area is triple fold  that of conventional products.
By taking advantage of this flux density, manufacturers can tightly pack the deep ultraviolet NCSU434B in their designs to focus on maximizing disinfecting power. These technical characteristics will support applications such as water purification, near-surface sterilization, and air purification systems to inactivate bacteria and viruses quickly, efficiently, and cost effectively.
In a one-pass test, results confirmed that a dosage of ~1mJ/cm2 reduced the infection titer to less than 1/10 (virus survival rate 4.5%), thus indicating positive and effective results against the covid-19 virus. 
Professor Yasuda of National Research Center for the control and Prevention of Infectious Diseases tested and verified the test results
 Scientific tests proved that the inactivation mechanism of deep ultraviolet light is based on direct denaturation of viral RNA, equally effective results can be expected against the rampant Delta strain, British strain and all of the other newest strain.
NICHIA  still takes the lead with its strongest focus on the spectrum 280nm in the UV-C LED industry. NICHIA will continue to develop UV-C LEDs with higher efficiency, higher radiant flux without compromising lifetime or quality for safer and cleaner world.

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