Melatonin is well known for its influence on our sleep as well as quality of sleep. The human body activates itself by lowering the amount of melatonin during the daytime when there is an abundance of sunlight, while at night when no light comes, it promotes better sleep through melatonin secretion.

‘LM302N DAY’ helps to improve concentration by realizing the optimal spectrum at which melatonin secretion is minimized, similar to how natural light does it. This product lowers melatonin levels by an average of 18% compared to using conventional LED light, leading to better concentration in schools, offices and industrial sectors.

On the other hand, ‘LM302N NITE’ minimizes disturbances to the natural onset of the body’s melatonin production, maximizing comfort and relaxation. For example, long usage of lighting at night lowers melatonin secretion and interferes with good quality sleep. However, ‘LM302N NITE’ increases melatonin levels by an average of 5% compared to using conventional LED light, leading to better quality sleep. Imagine how effective this lighting would be in homes or hotels where we specifically go to relax.

The more we know and learn about the world of light, which affects our quality of life beyond that what we can see, the more amazing it becomes.

LEDs are light-emitting diode semiconductor components that convert electrical energy into light energy. Since it is a semiconductor component, we can control the light spectrum. This has played a major role in developing human-centric LED lighting.

We wanted to develop light that would be more beneficial to the human body. We didn’t want to stop at merely bright enough lights. After meticulous research we have discovered light effects proven to influence the quality of life. While maximizing the effects of light’s melatonin control capabilities, we focused on maintaining efficiency, color quality, and long product life that are musts for LEDs.

To create light that can control melatonin, you could implement violet LEDs similar to ultraviolet (UV) to cover the cyan areas with phosphor fluorescence. But this significantly reduces energy efficiency. Also, the violet wavelength rapidly degrades LED package materials and shortens the product life. Most importantly, any short-wave blue light increase is harmful to human eyes.

Samsung’s LM302N lowers short-wave blue light and increases the proportion of low-energy cyan light without resorting to UV rays or the violet LED. This technology helps in extending LED product life and produces healthier light for people.

At first, our team didn’t have a mutually agreed upon understanding of how exactly human-centric lighting works or should work. So, we concentrated on improving color rendering to be as identical as possible to natural light while lowering harmful shortwave blue light. However, in response to the most recent researches on human circadian rhythm and synchronization regarding a certain spectrum of light, everything has changed.

It was like opening our eyes to a whole new world, especially since we were so focused on how to make LED light sources brighter, cheaper and longer-lasting. This was followed by plenty of debate on whether to focus on eye comfort or on its invisible human circadian rhythm impact. In the end, we agreed to a well-balanced solution that would prioritize the non-visual light effects, yet also meet or exceed industry standardized levels for color quality.

The use of 'DAY' lighting in schools, offices, and workshops can help increase concentration, and the use of 'NITE' lighting at home or in hotels can help induce sleep faster and deeper. Furthermore, for patients who spend 24 hours confined to the same space, such as hospitals and nursing homes, or for older people who spend less time outside, the addition of smart lighting that varies over time will help them experience the same beneficial effects as if they were outdoors under natural light and also sleep comfortably at night. In addition, in places like yoga studios where physical relaxation is needed, our NITE lighting of any desirable color temperature will allow you to comfortably engage in physical activity even under moderately bright light.