INFINILUX

The TM30 and CQS values in the LED strip integrating sphere test are important indicators. They evaluate the color rendering performance of LED light sources.

1. TM30 Numeric TM30 is a set of metrics proposed by the Illumination Engineering Society (IES) of North America. They comprehensively evaluate the rendering performance of light source colors. The TM30 method evaluates the color expressiveness of a light source. It calculates the color rendering index (Ra) of the light source on 15 standard Munsell color blocks. These color patches cover the main color regions in the visible spectrum. Therefore, the TM30 can more accurately reflect the light source’s ability to reproduce different colors. TM30 values range from 0 to 100, with higher values indicating better color rendering performance of the light source. TM30 also includes a complementary metric, TM20, which evaluates how well light sources render light-colored objects.
2. CQS is a method for evaluating color quality. It was proposed by the National Institute of Standards and Technology (NIST) in the United States. CQS measures how well the light source renders 15 standard Munsell color blocks. It is calculated differently than the TM30. CQS uses the weighted average method. This method considers the sensitivity of the human eye to different colors. It is a more scientific and accurate method for assessing the quality of color development. The CQS value ranges from 0 to 100. A higher value indicates better color rendering quality of the light source.

TM30 and CQS are both important indicators used to evaluate the color rendering performance of LED strips. They reflect the color reproduction ability of the light source. This is done by measuring how well the light source renders the standard color block. TM30 focuses on the overall representation of color rendering, while CQS focuses more on science and accuracy. In practice, TM30 and CQS are often used in combination to comprehensively evaluate the color rendering performance of LED light sources