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Author Zalesińska, Małgorzata
Affiliation Poznan University of Technology, Division of Lighting and Electro Heating Engineering
E-mail malgorzata.zalesinska@put.poznan.pl
Author Zabłocka, Julita
Affiliation Poznan University of Technology, Division of Lighting and Electro Heating Engineering
E-mail julita_zablo@op.pl
Author Pawlak, Andrzej
Affiliation Central Institute for Labour Protection – National Research Institute
E-mail anpaw@ciop.pl
ISSN printed 1733-8670
URI http://repository.scientific-journals.eu/handle/123456789/2607
Abstract Luminous flux reduction during operation affects the operating lifetimes of LED lamps. Due to the very long lifetimes of LED sources, i.e. tens of thousands of hours, the lifetime declared by the manufacturer is most often determined by forecasting the luminous flux reduction. Lifetime forecasting is performed based on measuring the operating luminous flux reduction within a time frame of at least 6000 hours, every 1000 hours, followed by extrapolating the obtained results with a relevant exponential curve. This article presents the results of measurements of luminous flux changes taking place between 0 and 10,000 operating hours of several LED light sources. The obtained results were analyzed, and the lifetimes of the examined lamps were evaluated.
Pages 23-28
Publisher Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie
Keywords lifetime
Keywords LED lamps
Keywords non-directional LED lamps for household use
Keywords Ulbricht’s sphere
Keywords forecasting the luminous flux reduction
Keywords forecasted lifetime
Title Evaluation of the durability of selected LED lamps
References
  1. Commission Delegated Regulation (EU) No. 874/2012 of 12 July 2012 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to energy labelling of electrical lamps and luminaires.
  2. Commission Regulation (EC) No. 244/2009 of 18 March 2009 implementing Directive 2005/32/EC of the European Parliament and of the Council with regard to ecodesign requirements for non-directional household lamps.
  3. Commission Regulation (EU) No. 1194/2012 of 12 December 2012 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for directional lamps, light emitting diode lamps and related equipment.
  4. IES TM-21-11. Projecting Long Term Lumen Maintenance of LED Light Sources.
  5. Pawlak, A. & Zalesińska, M. (2017) Comparative study of light sources for household. Management Systems in Production Engineering 1 (25), pp. 35–41.
  6. PN-EN 62612:2013. Lampy samostatecznikowe LED do ogólnych celów oświetleniowych na napięcie zasilające > 50 V.
  7. Szwedek, S., Zalesińska, M. & Górczewska, M. (2017) Ocena parametrów fotometrycznych. kolorymetrycznych i elektrycznych wybranych zamienników żarówek tradycyjnych 100 W. Poznan University of Technology. Academic Journals. Electrical Engineering 92, pp. 153–164.
  8. Tabaka, P. (2015) Analysis of properties of lighting-optical equivalents of traditional bulbs for dimming. Light & Engineering 23, 1, pp. 79–86.
  9. Zabłocka, J., Zalesińska, M. & Górczewska, M. (2017) Badanie zmian parametrów eksploatacyjnych wybranych lamp do użytku domowego. Poznan University of Technology. Academic Journals. Electrical Engineering 92, pp. 166–167.
  10. Zabłocka, J., Zalesińska, M., Wandachowicz, W. & Raczak, A. (2018) Pomiar i ocena eksploatacyjnego spadku strumienia świetlnego lamp LED. Poznan University of Technology. Academic Journals. Electrical Engineering 96, pp. 209–218.
  11. Zalesińska, M. (2012) Analiza porównawcza parametrów fotometrycznych i elektrycznych bezkierunkowych źródeł światła do użytku domowego. Prace Instytutu Elektrotechniki. Warszawa, zeszyt 255. pp. 161–173.
  12. Zalesińska, M., Zabłocka, J. & Wandachowicz, K. (2018) Pomiar i ocena wybranych parametrów bezkierunkowych lamp do użytku domowego. Przegląd Elektrotechniczny 94, 3, pp. 188–192.
ISSN on-line 2392-0378
Language English
Funding No data
Figures 4
Tables 4
DOI 10.17402/396
Published 2020-03-31
Accepted 2020-02-10
Recieved 2019-10-07


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