Composition, spectral performance (color rendering index, correlated color temperature, radiant flux ratio of red, green and blue light, spectral characteristics of near-infrared excitation light, infrared cut-off performance), illumination uniformity performance of the reference window (illumination uniformity, illumination over-limit point) , Radiation performance (total output luminous flux), excitation light power, reproducibility of the excitation light output power, instability of the excitation light output power, electrical safety, mechanical interface specifications, and safety measures to prevent failure.