RESEARCH ON THE CHARACTERISTICS OF LED LIGHT SOURCES
DOI:
https://doi.org/10.32718/agroengineering2025.29.70-78Keywords:
LED lamps, illumination, pulsation level of LED lamps, temperature regime, light output of LED lampsAbstract
Advances in semiconductor physics, optics, and optoelectronics over the past 10 to 15 years have enabled the development of light sources that are 4 to 10 times more energy-efficient and have a lifespan 30 to 100 times longer than traditional incandescent lamps. One significant type of these light sources is solid-state LEDs. Recently, numerous articles have been published in lighting journals discussing the advantages of LEDs and predicting their future developments. However, our extensive research has indicated that, in many cases, the performance characteristics claimed by manufacturers do not match the actual values. This led us to investigate the true characteristics of LED lamps currently available on the Ukrainian market, to identify the most effective options.
This study focuses on the characteristics of modern light sources, using LED lamps as an example. We examined several brands, including LED A60 10W, IEK A60 11W, Horoz Electric 10W, Eurolamp 9W, HOPFEN 10W, TECHLAMP 10W, Emilight 11W, OSRAM 10.5W, LEBRON LED 10W, and Light Master 11W, to evaluate their compliance with declared lighting and electrical parameters. The analysis was conducted using products available in the Lviv market as of June 2025.
The experiments took place at the Department of Electrical Engineering Systems within the Electric Lighting Laboratory.
Several parameters were investigated, including illumination levels based on the supply voltage, the pulsation levels of the LED lamps in relation to the supply voltage, the temperature conditions of the lamps with regard to the supply voltage, power consumption relative to the supply voltage, and the light output of the LED lamps concerning the supply voltage.
Following the experiments, we analyzed the results according to the above parameters and formulated conclusions and recommendations based on our findings.
References
Barbosa, J. L. F., Coimbra, A. P., Simon, D., & Calixto, W. P. (2022). Optimization process applied in the thermal and luminous design of high power LED luminaires. Energies, 15(20), 7679. https://doi.org/10.3390/en15207679
Bhattarai, T., Ebong, A., & Raja, M. (2024). A review of light-emitting diodes and ultraviolet light-emitting diodes and their applications. Photonics, 11(6), 491. https://doi.org/10.3390/ photonics11060491
Chinchero, H. F., Alonso, J. M., & Hugo, O. T. (2020). A review on smart LED lighting systems. 2020 IEEE Green Energy and Smart Systems Conference (IGESSC), LongBeach, CA, USA, 1–6. https:// doi.org/10.1109/igessc50231.2020.9285004
DBN В.2.5.-28-2006 Retrieved from: https://online.budstandart.com/ua/catalog/doc-page.html?id_doc=28019 (Accessed February 8, 2025).
Goshko, M. (2021). Influence of the construction of start-up adjustment equipment of modern led lamps on their performance characteristics. TEKA. QUARTERLY JOURNAL OF AGRI-FOOD INDUSTRY, 20(2), 33–39.
Goshko, M. (2021). Тhe outer temperature effecton the of led lamps working characteristics. TEKA. QUARTERLY JOURNAL OF AGRI-FOOD INDUSTRY, 21 (1), 13–18.
Pekur, D. V., & Sorokyn, V. M. (2023). Stan i perspektyvy rozvytku bilykh svitlodiodiv z vyprominiuvanniam, nablyzhenym do pryrodnoho. Optoelektronika ta napivprovidnikova tekhnika, 58, 16–20. https://doi.org/10.15407/iopt.2023.58.016
Różowicz, A., Wachta, H., & Baran, K. (2022). Arrangement of LEDs and their impact on thermal operating conditions in high-power luminaires. Energies, 15(21), 8142. https://doi.org/10.3390/en15218142
Taki, T. (2019). Strassburg M. Review–Visible LEDs: more than eficient light. ECS Journal of Solid State Science and Technology, 9 (1), 015017. https://doi.org/10.1149/2.0402001jss
Weisbuch, C. (2020). Review – On the search for eficient solid state light emitters: past, present, future. ECS Journal of Solid State Science and Technology, 9(1), 016022. https://doi.org/10.1149/2.0392001jss.
