paraThe lighting industry is faced with a color quality challenge with the advent of LEDs when the current metrics such as the International Commission on Illumination (CIE)'s Color Rendering Index (CRI) do not completely account for how the human eye sees color under LED lighting or comprehensively this lighting to traditional sources. LEDs produce a spectral power distribution that enhances the perception of saturated colors in the lighting application, in some cases, even at a lower CR1. As a result, many LED specifiers are beginning to evaluate specific R9 reference sample values in addition to CR1. If exceptional color quality is the ultimate goal for the intended lighting application, considering high-CRI level LEDs can be a solution. The color quality scale (CQS) implements a scale of 15 higher chroma colors as opposed to CRI's eight- color scale./para
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