human centric lighting

Ever since artificial lights have come to exist, it has dominated the core of many elements that actively influence our physiology and performance. Over the years, scientific studies have suggested that lighting has more to do than just illumination. Researchers have concluded time and again that light meets both our visual and non-visual needs.

"A recent study shows that light is a dominant factor in our brain's ability to focus and learn."

Take, for example, the Circadian Rhythm in us humans. We have evolved over hundreds of years in sync with the Earth's natural lighting cycle. Until the advent of artificial lighting, almost 90% of our 'awake time' was spent outside and now we spend that percentage of our time indoors with electric lighting. While at work, our lighting is set at a constant correlated color temperature (CCT), which is not in tune with nature's varying CCTs. This disruption in our circadian rhythm is the

source of a number of health issues that affect us nowadays. Specifically, light and darkness control our hormone production. A normal circadian rhythm would result in the release of the adequate level of Dopamine for us to feel alert and pleasure, Seratonin for us to control our impulses and Cortisol in response to stress. At night, darkness induces the release of Melatonin to help us feel sleepy. The well-being of our health is often associated with the quality of our sleep-and-wake cycle. A disruption in this cycle impacts the way we function. Tiredness causes stress, cognitive problems, lack of creative flair, excess cravings, low immunity and even cancer. In the age of high productivity, these issues can act as a major hiccup.

"Research shows that students exposed to lighting with higher light intensity and light temperature levels had, by the end of the year, increases in performance that was 33% higher than the increases in performance of the control group."


Now, let us talk about productivity. It has been observed that when lighting is tuned to support workers’ circadian sleep-wake cycles and stimulate energy levels at set times in the day, they are more motivated to work. In computer-intensive environments, ambient light levels when lowered to an illuminance of 15 fc using 8000K lamps, employees have noted they’re able to see better, are not as tired at the end of the day, and sleep better at night. It helped them have sustained concentration and energy levels.

Understanding these interactions have helped light designers around the world in developing lighting solutions that are targeted at enhancing vision, well-being and performance. Thanks to great strides in solid-state lighting, there now exists a whole new ability to dim and tune CCT, commonly called Kelvin changing or shifting. Developments like this can really improve conditions for people, well beyond just energy saving.

Lighting solutions targeting human-centric applications are the norm of the future, given their multitude of advantages. IKIO products like LED CCT Tunable Round Retrofit Kit aims to capitalize on the un-reaped benefits of revolutionary scientific research, keeping in mind user needs. With Variable CCT options (any Color Within 2700 K – 5000 K), it has an outstanding 90+ CRI rating. Its technology is matched by its efficiency and durability. When lighting applications require you to focus on both energy savings and human-centric lighting, lamps like these are a perfect value for your investment.