spectrophotocolorimeter 1.Test spectral radiance, luminosity and chromaticity of all kinds light sources. 2.Fast test speed ... that can be measured: Relative Spectral Power Distributions Diagram P(λ), Chromaticity Coordinate (x, y), (u, v), Correlated Color Temperature: ... UV-VIS-nlR).3. Wavelength accuracy: ±0.2nm ; 4. Chromaticity Coordinates Accuracy: ±0.0003nm(at Illuminant A)5. Sample Interval: ...