Table 5.

Natural light characteristics that can be gathered by each device.

Classification	RGB-Sensor-Based Color Temperature Measuring Device	Standard Equipment (Spectroradiometer, CAS 140CT)
Instrument and output factors	Illuminance, RGB, tristimulus values (X, Y and Z), chromaticity coordinates (x and y), color temperature (CCT)	Spectral irradiance, wavelength band-by-band (short, middle and long wavelengths) ratios, illuminance, RGB, tristimulus values (X, Y and Z), chromaticity coordinates (x and y), color temperature (CCT)