... Wavelength, Half Bandwidth, Dominant Wavelength, Color Purity, CRI, Spectrum Test• Photometric: Luminous Flux, Luminous Efficiency, Radiant Power ... linearity of 0.3% in overall dynamic range.High Precision CCD Visible Light Spectrophotometer is according to LM ... , Half Bandwidth, Dominant Wavelength, Color Purity, CRI, Spectrum Test• Photometric: Luminous Flux, Luminous Efficiency, Radiant Power ...