To determine the spectroradiometric and colorimetric parameters by spectroradiometry method according to CIE NO.63, e.g: spectral power distribution, chromaticity coordinates, correlated color temperature, color rending index, color tolerance, color difference, color purty, dominant wavelength, luminous flux, radiant power, photobiology index, luminous efficiency etc. It is widely used in the quality analysis of light sources and luminaries and etc.