Nichia’s new 280 nm high-output UVC-LED NC4U334BR, launched in October 2021
On 6 October, Nichia announced the launch of its high-output UVC-LED, the NC4U334BR, further demonstrating its commitment to UVC-LED technology.
It is understood that the new high-output UVC-LED, the NC4U334BR, measures 6.8mm × 6.8mm and continues to operate in the 280nm wavelength band to maximise its virucidal efficacy whilst maintaining practical reliability; whilst generating a radiant flux of 200 mW at an input power of 7.8 W, significantly increasing the available virucidal power without compromising service life. It is currently one of the UVC-LEDs with the highest output in the industry.
According to official data, the high power output of the NC4U334BR opens up greater possibilities for industrial water treatment and air purification. Previously, the available radiant flux within a given space was limited, and due to the large scale of industrial applications, mercury lamps have traditionally been the primary choice for such processes. However, compared to mercury lamps—which take time to reach full power—the ability of LEDs to switch on and off instantly significantly reduces standby power consumption.
On 21 September, Nichia also launched the high-radiant flux NCSU434B UVC-LED, operating at a wavelength of 280 nm. It boasts the industry’s highest power conversion efficiency for a 3.5 mm × 3.5 mm LED, delivering a typical radiant flux of 62 mW at a typical input power of 350 mA/5.7 V. Furthermore, in high-density installations, the radiant flux per unit area is approximately three times that of conventional products. Mass production has now commenced, with the product intended for use against various bacteria and viruses, particularly in industrial water and air applications.
UVC-LED is currently one of the most popular methods of sterilisation; it is expected to revolutionise sterilisation and disinfection efficacy and may lead to safer conditions for eliminating pathogens. This is widely recognised within the industry and represents a significant shift in the future of UV disinfection, moving away from the current use of mercury lamps towards UV-LED disinfection.
The latest high-output UVC-LED, the NC4U334BR, has been launched to meet, to a certain extent, market demand for industrial water treatment and air purification. Importantly, this compact and efficient LED delivers high radiant flux and high power. Compared with previous technologies, this solution enables greater system miniaturisation and offers highly stable, long-life performance.
Nichia pledges to continue focusing on the development of deep-ultraviolet LEDs with higher performance and reliability, and to contribute to the realisation of a mercury-free and carbon-free society through energy efficiency.
