Mainly used for testing individual piecesLED、LED/LEDBacklight sourceLEDModuleLEDThe relative spectral distribution, chromaticity coordinates, dominant wavelength, peak wavelength, spectral purity, color temperature, color rendering index, half width, luminous flux (with integrating sphere), radiated power, red ratio, color tolerance and other parameters of the lighting fixtures meet the requirements of the International Commission on IlluminationCIERequirements for measuring light and color.