Light up my day : a between-group test of dynamic lighting effects on office workers' wellbeing in the field

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Abstract

Dynamic lighting is designed to have positive effects on wellbeing and performance. However, whether these effects are detectable and stable over time when employed in actual work settings has not been thoroughly investigated. We explore whether beneficial effects of dynamic lighting indeed hold up in real life. This 2-year study consists of two tranches. The first one follows a monthly alternating experimental design. In the second tranche lighting settings remain constant during winter for both groups of around 100 employees, then switch to the alternate condition the next year. This paper reports on the first phase of this second tranche. Between-group data from questionnaires distributed twice during winter suggest that groups differed in terms of workers' recovery needs – higher in groups with dynamic lighting - but no significant differences occurred for vitality, alertness, headache and eyestrain, mental health, sleep quality, or subjective performance. Employees in dynamic lighting were more satisfied with and experienced fewer disturbances from the lighting and daylight than workers in static lighting. However, whether differences should be attributed to lighting conditions or differing group characteristics remains inconclusive until within-group analyses are performed.
Original languageEnglish
Title of host publicationLux Europa 2009; 11th European Lighting Congress, September 9-11,2009
EditorsA.K. Yener, L.D. Oztürk
Place of PublicationIstanbul
PublisherTurkish national committee on illumination
Pages161-168
ISBN (Print)9789755613529
Publication statusPublished - 2009
Event11th European Lighting Congress (Lux Europa 2009), September 9-11, 2009, Istanbul, Turkey: Lighting and the environment - Istanbul, Turkey
Duration: 9 Sep 200911 Sep 2009

Conference

Conference11th European Lighting Congress (Lux Europa 2009), September 9-11, 2009, Istanbul, Turkey
Abbreviated titleLux Europa 2009
CountryTurkey
CityIstanbul
Period9/09/0911/09/09

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