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Crystal IS releases UVC LED lifetime data


Lifetime characterisation data for Klaran LA UVC LED has a projected L70 Rating of 25,000 hours

Japanese multinational Asahi Kasei and its subsidiary Crystal IS have released lifetime characterisation data after more than 10,000 hours of testing its Klaran LA UVC LED, which supports a projected L70 lifetime of 25,000 hours.

This advancement retains true disinfection with a refined wavelength optimal for germicidal efficiency, with a lifetime exceeding low pressure mercury lamp technology, promoting the transition to non- mercury/non-ozone generating devices.

The characterisation data on its Klaran LA UVC LEDs was released to assist partner companies in water, air, and surface treatment to take full advantage of its UVC LED capabilities in their designs. This data shows how a set of Klaran LA LEDs operating at 350 Milliampere (mA) and with a Junction temperature of 53°C (soldering point temperature of 35°C) (Figure A) would have a projected L70 lifetime value over 25,000 hours (L70 refers to the point in time when an LED produces 70 percent of its initial light output).

This data was observed on the Crystal IS in-house VEKTREX Integrated Thermal Control Systems (Figure B), demonstrating the organisation’s commitment to providing amble characterisation data under various test conditions to aid in our customers’ designs. The VEKTREX system enables Crystal IS to perform lifetime testing of large quantities of LEDs at multiple temperatures and driving currents.

“Klaran LA's lifetime performance is the result of Asahi Kasei product innovation using the Crystal IS proprietary aluminum nitride substrate and reinforces the company mission to replace low-pressure mercury lamps in consumer and industrial applications that depend on reliable and effective disinfection performance,” said Eoin Connolly, president and CEO of Crystal IS.

"We want the Crystal IS name to be synonymous with quality, reliability, and a commitment to real disinfection products that improve life and living around the world. Our rigorous testing on thousands of Klaran devices and ISO 9001 quality system provide the data-driven proof of the reliability and performance of our Klaran products."

The Klaran product line is built on Crystal IS' AlN substrate technology to provide germicidal UVC LEDs and associated modules to treat water, air, and surfaces for healthcare, consumer appliances, and commercial water treatment.

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