The latest survey reveals that lighting affects employees' productivity in psychological aspect.
An overwhelming 77% of respondents in a British survey felt that lighting in the workplace can affect their productivity, with 33% saying that access to natural light is important and 32% saying they would be happy to work under artificial light that is designed to aid productivity.
That aside, it is notable that the vast majority of respondents are predisposed to connect office lighting conditions with their own output at work. The survey results suggest that whatever lighting's direct biological effects are, humans at least psychologically react to illumination.
The results are more grist for the ever-expanding mill of human-centric lighting, which maintains that lights tuned to output at different brightness levels and with varying spectral content are optimal for different tasks and occasions, such as working, learning, paying attention, relaxing, waking up and so forth. In human-centric lighting designs, settings vary over the day to correspond with humans' 24-hour circadian rhythms.
While a direct link to productivity has probably not yet been absolutely proven, anecdotal evidence and common sense strongly suggests that when a workforce is happier with lighting conditions, it is also more inclined to produce.
The science of human-centric lighting is still evolving. A couple of its basic tenets hold that blue spectral content at night can harm sleep because it suppresses melatonin, a hormone associated with slumber; and that blue-enriched light can stimulate a pigment called melanopsin in the retina's non-visual photoreceptors, which in turn stokes up the brain's master clock and thus fosters alertness.
Human-centric lighting is beginning to take hold in the workplace, but it has made more inroads in healthcare environments. For example, specially designed LED lighting has helped reduce drug reliance at a psychiatric ward, has been linked to improved dementia care such as facilities based in Denmark, Germany, and the UK.
The survey also found that at home 31% of respondents believe lighting is important when creating a relaxed and calm atmosphere before going to bed in the evening, and that 38% feel that morning bedroom lighting can help them energize them.
Caring people's well-beings, WELLMAX has developed a human centric lighting solution—the Basic HCL products to allow people to personalize the aura of their living space according to their needs, and at the same time realize the healthy light effect that conforms to human's circadian cycles.
Source: LEDs Magazine, Jan 18th, 2019