It affects eye and muscle fatigue, environmental and personal comfort, quality and detail of what we see and overall sense of well-being. Most lighting produces a yellow to pink tone of light that causes glare, provides insufficient levels of light for seeing and emits various levels of heat that can cause discomfort. Often people increase glare, stress and discomfort when they add more light because of the yellowness, glare and heat produced.
Most people can see better during the daylight hours by a window or under a skylight.
This occurs because all of the colors of the rainbow or spectrum are in outdoor light and the eye picks up light from each color grouping. Generally people can use less light and see more when they use Total Spectrum light. It produces more usable light for the eye. It often feels like you are under frosted skylights. Glare is virtually eliminated.