This standard specifies the general requirements for the color rendering evaluation of Light sources, the measurement of Light source Light spectrum Power distribution and the calculation of color rendering. It is applicable to the color rendering evaluation of Light sources that comply with the white Light source regulations. Terms and definitions include Light source color rendering, color rendering index, general color rendering index, etc. The evaluation should be quantitatively evaluated using the color rendering index, taking into account the color gamut index, chroma index, etc. The color quality difference between the measured Light source and the reference illuminator should be less than 5.4X10- ³.