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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

10 months 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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