Lextar Electronics, the vertically integrated LED maker in Taiwan, is setting the trend with human-centric lighting, a combination of LED lighting fixtures with a control system that can simulate day and night to change the color temperature of the light. At the same time, the company also launched “Solar White”, its latest LED light quality upgrade technology capable of generating an LED light source similar to natural sunlight. Lextar will attend the Hong Kong International Lighting Fair (Autumn Edition) from 27-30 October 2016, where it will once again publicly display its concept of human-centric lighting in the form its ALLUXIA flat panel lights.  ALLUXIA has won the German Design Award and the Red Dot design award 2016.

Human-centric lighting currently is a focal issue in European lighting applications. Lextar’s human-centric lighting system comes with a control that can adjust the color temperature of the LED to simulate morning to evening light and create a natural light environment in line with people's physiological rhythm, suitable for use in indoor environments that lack natural lighting. In addition, human-centric lighting can also be used to influence people’s mood and spirit, with warm colors promoting relaxation while cool colors help with contraction and enhance productivity. Lextar will integrate human-centric lighting in its frameless flat panel light series ALLUXIA. ALLUXIA also has won the German Design Award and the Red Dot design award 2016.

In order to enhance the quality of LED light and to show the true colors under the light, Lextar launches its in-house developed “Solar White” LED technology, whose LED wavelength distribution can simulate real sunlight, with an Rf (color fidelity index) of up to 94 and an Rg (color gamut score) of 99.* Lextar's Solar White LED technology generates a light source most closely resembling natural sunlight. It makes indoor, lit environments more comfortable and healthy, and it can truthfully bring out hues and red and blue color saturation.

Lextar CEO Advisor Allen Huang said, "Today's LED market pursues product functionality and cost control, however what’s often overlooked is the importance of light to human physical and mental health. We believe that pursuing the creation of high-quality lit environments to enhance the added value of LED lighting is an important direction. Lextar is currently actively developing such products with brand customers in Europe." Huang added that statistics indicate that people spend about 90% of their time indoors, and thus rely heavily on artificial lighting. Therefore, the theme of Lextar’s booth at the Hong Kong lighting exhibition focuses on improving the quality of indoor lighting. The booth will showcase a wide variety of soft light sources and flat panel light with simple but stylish design. The booth also displays light color temperature tunable fixtures as well as the Solar White LED technology, leading the international trend into a new era of LED lighting.

* In May 2015, the Illuminating Engineering Society of North America (IES) published IES TM-30-15, its new method for evaluating light source color rendition, which made up for the shortcomings of its predecessor Color Rendering Index (CRI). The CRI index cannot fully express the human-eye perception of color. IES TM-30-15 presents the “color fidelity index” Rf and the “color gamut index” Rg as new powerful tools for improving color rendering.

The fidelity index (Rf) is used to indicate the similarity of the standard colors to the reference light source when the test light source is illuminated. The index runs from 0 to 100. The higher the value, the better the color fidelity. The gamut score (Rg) represents the change in saturation of the standard colors compared to the reference source under the test light, and an index value of 100 represents the best possible saturation. The release of the IES TM-30-15 standard is expected to contribute to improved lighting and improved quality of life in lit environments.