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Juntae Jake Son, Ph.D.
Assistant Professor, LEED AP ID+C

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Archive for category: International Journal of Environmental Research and Public Health

Home/International Journal of Environmental Research and Public Health

September 15, 2025

2 weeks ago

Effects of LED Versus Fluorescent Task Lighting on Sleep Quality and Daytime Function in Windowless Office Environments

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InInternational Journal of Environmental Research and Public Health

This study investigated the effects of LED versus fluorescent task lighting on sleep quality and daytime functioning among office workers in a windowless environment. Using a within-subjects crossover design with 32 full-time employees, participants were exposed to both 4000 K LED and 4100 K fluorescent lighting conditions over two one-week periods. Subjective sleep quality and …

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