... (UV-VIS-NIR)P(λ), chromaticity coordinate, correlated color temperature ( Color Temperature Meter ), rending index, color difference, peak wavelength, ... and light material under the control of general PC.• Automatically adjust high-voltage, it not only shortens the measurement time ... 0.3%• Accuracy of luminosity: 1 class• Correlated color temperature measure range: 1500K~25000K• Accuracy of CCT: ±0. ...