UV and UV-C LEDs exhibit a transient voltage effect that increases Vf during the first few milliseconds of operation. While optical output is not impacted, this effect makes it impossible to use forward voltage to infer temperature. This presentation presents factors to consider with UV LED measurements. Also presented are the standards documenting LED’s and LED measurement requirements for UV LEDs.

Factors to Consider with UV LED Measurements

Email info@vektrex.com for more information about the LEDs Magazine Webinar presented by Intertek and Vektrex. “Factors to Consider when making UV LED Measurements.”

About Jeff Hulett

Jeff Hulett is the Founder and CTO of Vektrex Electronic Systems, Inc. Because of his vision and leadership, the company grew from a start-up to the market leader. Currently, Hulett is the Chief Architect for Vektrex products placing the highest emphasis on technology and quality. Hulett holds a BSEE from the Illinois Institute of Electronics, and has been awarded four U.S.patents. He is a member of the Illumination Engineering Society of North America (IESNA), and chairs the IESNA LM-80 working group that is focused on LED flux maintenance testing. He has been active in the LED testing and reliability field since 2004.

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