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Comparison of luminous flux maintenance methods, continuous vs. on-off cycles

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper will present preliminary results from a research project comparing two methods for estimating the lifetime of LED products, LM-84 (6000 h test) and the new EU endurance test (3600h test) including on/off cycling, that will be required by EU from 2021. Beside the luminous flux development for the sources tested, their colorimetric results will also be examined as a function of time. Preliminary results for two series of LED products will be presented. For one series, the 3600h test have been completed, for the remaining series only results from the 6000h test is available. Results of the luminous flux and color maintenance will be presented. Initial examinations shows good agreement between the two tests methods for the first series of LED products measured.
Original languageEnglish
Title of host publicationProceedings of the CIE Conference 2021
Number of pages7
PublisherCIE - International Commission on Illumination
Publication date2021
ISBN (Print)978-3-902842-29-9
Publication statusPublished - 2021
EventCIE 2021 Midterm Meeting & Conference: Light for Life - Living with Light - Online event, Kuala Lumpur, Malaysia
Duration: 27 Sept 202129 Sept 2021
https://malaysia2021.cie.co.at/

Conference

ConferenceCIE 2021 Midterm Meeting & Conference
LocationOnline event
Country/TerritoryMalaysia
CityKuala Lumpur
Period27/09/202129/09/2021
Internet address

Keywords

  • LED lamps
  • Long-term testing
  • EU endurance test
  • Lumen maintenance

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