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Webinar: Understanding LM-80 and TM-21

September 23, 2020 | 8:00 am - 8:45 am PDT

IESLA TECHfast Sept 2020


Wednesday Sept. 23, 2020 8am – 8:45am
Understanding the basics of LM-80 testing and how to use the data for TM-21 Lifetime projections.

Three items you will learn during this presentation:

  1. Basics behind LM-80 testing and how key data is generated
  2. Basics behind TM-21 calculations and their limits
  3. Utilizing the testing to estimate LED Lifetime in applications with accurate measurements from in-situ temperature measurement testing (ISTMT)

Presented by Jonathan Vollers
Technical Manager – Photometry Lighting Qualification, Cree Lighting.

Jonathan is Lighting Certified, has mechanical engineering degree from Syracuse University, and has a MBA from Baker College. He worked in the Aerospace Industry for 15 years prior to making the switch into Lighting in 2012. Since that time, he has managed photometry laboratories, a reliability laboratory, and the performance validation of Cree Lighting Solid-State LED lamp and luminaire designs to meet ENERGY STAR, DesignLights Consortium, California Energy Commission’s Quality LED Lamps, Title 20, & Title 24 requirements, as well as many others. He also elevates the industry by contributing on the IES Test Procedure and the NCQLP Test Examination Committees along with his work at Cree Lighting.

After you register and before the event you will be a sent a link to the presentation.


September 23, 2020
8:00 am - 8:45 am PDT
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