A Comparative Study between Phosphor-Converted LED and Color-Mixed LED for Horticultural Applications Based on Power Quality and Lighting Quality

Napat Watjanatepin, Paiboon Kiatsookkanatorn

Abstract

This study aims to identify the advantages and disadvantages of the power quality and light quality of horticultural light produced from the phosphor-converted LED (pcH-LED) compared to the color-mixed LED. The research goal is to elucidate the light characteristics of pcH-LEDs and promote them in indoor cultivation. The light quality and power quality were measured by a spectroradiometer and power analyzer, respectively.  The results showed that the pcH-LED exhibited the highest percentage of far-red light and produced the highest PPFD, YPFD, and Peff, with the lowest amount of power consumed. The disadvantage of pcH-LED is that it generated the lowest power factor and showed the current waveform distortion. In conclusion, the pcH-LEDs are appropriate for indoor horticultural applications. They could emit a comprehensive range of light that plants need, from visible (400-700 nm) to far-red (701-780 nm).  However, the addition of the power factor correction is required to improve the low power factor problem.

 

Keywords: phosphor-converted LEDs, color-mixed LED, horticultural application, power quality.

 


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HWANG H., AN S., LEE B., and CHUN C. Improvement of Growth and Morphology of Vegetable Seedlings with Supplemental Far-Red Enriched LED Lights in a Plant Factory. Horticulturae, 2020, 6(4): 109. https://doi.org/10.3390/horticulturae6040109

BANTIS F., SMIRNAKOU S., OUZOUNIS T., KOUKOUNARAS A., NTAGKAS N., and RADOGLOU K. Current status and recent achievements in the field of horticulture with the use of light-emitting diodes (LEDs). Scientia Horticulturae, 2018, 235: 437-451. https://doi.org/10.1016/j.scienta.2018.02.058

WATJANATEPIN N., CHUNG H., and RUANGPATTANAWIWAT C. Morphological response of tomato seedling under two periods of different red and blue photon flux ratio. International Journal of Advanced and Applied Sciences, 2018, 5(10): 22-27. https://doi.org/10.21833/ijaas.2018.10.004

LI Y., LIU C., SHI Q., YANG F., and WEI M. Mixed red and blue light promotes ripening and improves quality of tomato fruit by influencing melatonin content. Environmental and Experimental Botany, 2021, 185: 104407. https://doi.org/10.1016/j.envexpbot.2021.104407

SAMUOLIENĖ G., VIRŠILĖ A., BRAZAITYTĖ A., JANKAUSKIENE J., SAKALAUSKIENE S., VASTAKAITE V., NOVICKOVAS A., VISKELIENE A., SASNAUSKAS A., and DUCHOVSKIS P. Blue light dosage affects carotenoids and tocopherols in microgreens. Food Chemistry, 2017, 228: 50-56. https://doi.org/10.1016/j.foodchem.2017.01.144

PARK Y., & RUNKLE E. S. Far-red radiation promotes growth of seedlings by increasing leaf expansion and whole-plant net assimilation. Environmental and Experimental Botany, 2017, 136: 41-49. https://doi.org/10.1016/j.envexpbot.2016.12.013

CARVALHO S. D., SCHWIETERMAN M. L., ABRAHAN C. E., COLQUHOUN T. A., and FOLTA K. M. Light Quality Dependent Changes in Morphology, Antioxidant Capacity, and Volatile Production in Sweet Basil (Ocimum basilicum). Frontiers in Plant Science, 2016, 7: 1328. https://doi.org/10.3389/fpls.2016.01328

YOOMAK S., & NGAOPITAKKUL A. Optimisation of lighting quality and energy efficiency of LED luminaires in roadway lighting systems on different road surfaces. Sustainable Cities and Society, 2018, 38: 333-347.

TABBERT J. M., SCHULZ H., and KRÄHMER A. Increased Plant Quality, Greenhouse Productivity and Energy Efficiency with Broad-Spectrum LED Systems: A Case Study for Thyme. Plants, 2021, 10(5): 960. https://doi.org/10.3390/plants10050960

PALMITESSA O. D., PRINZENBERG A. E., KAISER E., and HEUVELINK E. LED and HPS Supplementary Light Differentially Affect Gas Exchange in Tomato Leaves. Plants, 2021, 10(4): 810. https://doi.org/10.3390/plants10040810

UDDIN S., SHAREEF H., and MOHAMED A. Power quality performance of energy-efficient low-wattage LED lamps. Measurement, 2013, 46(10): 3783-3795. https://doi.org/10.1016/j.measurement.2013.07.022

YOOMAK S., JETTANASEN C., NGAOPITAKKUL A., BUNJONGJIT S., and LEELAJINDAKRAIRERK M. Comparative study of lighting quality and power quality for LED and HPS luminaires in a roadway lighting system. Energy and Buildings, 2018, 159: 542-557. https://doi.org/10.1016/j.enbuild.2017.11.060

SINGH D., BASU C., MEINHARDT-WOLLWEBER M., and ROTH B. LEDs for energy efficient greenhouse lighting. Renewable and Sustainable Energy Reviews, 2015, 49: 139-147. https://doi.org/10.1016/j.rser.2015.04.117

PATTISON P. M., HANSEN M., and TSAO J. Y. LED lighting efficacy: Status and directions. Comptes Rendus Physique, 2018, 19(3): 134-145. https://doi.org/10.1016/j.crhy.2017.10.013

RADETSKY L. C. LED and HID Horticultural Luminaire Testing Report, 2018. https://www.lrc.rpi.edu/programs/energy/pdf/HorticulturalLightingReport-Final.pdf

WATJANATEPIN N., & KIATSOOKKANATORN P. An Analysis Method of the Temporal Instability and the Non-Uniformity of the Chip-On-Board Light Emitting Diodes Solar Simulator. International Journal of Engineering & Technology, 2018, 7(3.7): 585–589. https://doi.org/10.14419/ijet.v7i3.7.19056

CHUNG J.-P., HUANG C.-Y., and DAI T.-E. Spectral effects on embryogenesis and plantlet growth of Oncidium ‘Gower Ramsey’. Scientia Horticulturae, 2010, 124(4): 511-516. https://doi.org/10.1016/j.scienta.2010.01.028

BULGARI R., NEGRI M., SANTORO P., and FERRANTE A. Quality Evaluation of Indoor-Grown Microgreens Cultivated on Three Different Substrates. Horticulturae, 2021, 7(5): 96. https://doi.org/10.3390/horticulturae7050096

WATJANATEPIN N. Modification of growth and yield of the leafy vegetable under phosphor-converted light-emitting diode. Polish Journal of Natural Sciences, 2021, 35(2): 113-128. http://www.uwm.edu.pl/polish-journal/sites/default/files/issues/articles/watjanatepin_2020.pdf

DLC. Testing and Reporting Requirements for LED-Based Horticultural Lighting, 2020. https://www.designlights.org/wp-content/uploads/2021/01/DLC_V2-0-Horticultural-Testing-Reporting-Requirements_FINAL_09142020.pdf

DJURETIC A., & KOSTIC M. Actual energy savings when replacing high-pressure sodium with LED luminaires in street lighting. Energy, 2018, 157: 367-378. https://doi.org/10.1016/j.energy.2018.05.179


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