Health & Performance
Last Update: October 2, 2010
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Lighting & Productivity

Lighting designers and industry advocates have argued for many years that good lighting results in productivity benefits for the business owner. This claim is made more attractive by the fact that only a minute improvement in productivity is sufficient to justify the cost of good lighting (see Supplement: Productivity and the economic value of lighting). But what is meant by good lighting and by productivity?

Productivity Definitions
In the early days of electric lighting, good lighting was basically enough light to provide a high level of visibility of whatever needed to be seen. Later, this definition was expanded to cover the elimination of visual discomfort. Today, good lighting is taken to mean lighting that provides a high level of task visibility, without discomfort, and an attractive and interesting visual environment.
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Productivity Evidence
So what evidence is there that better lighting can improve productivity? There is certainly evidence that tasks that are dominated by the visual component can be done more quickly when the visibility of the task details is increased.
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