Description Overview Handheld spectral colorimeter illuminance meter set with measurement functions for spectrum, illumination, chromaticity, and light flicker in one. Uses a 5-inch screen to display measurement parameters and curves in real time. Convenient to use and can be directly tested in the lighting field. Measures not only led wide spectrum light sources but also narrow spectrum light sources such as clf, hid, and so on. Can also be used to test environmental light for stage design, building light, plant growth lamp, engineering application, and so on. Measuring Parameters Cct tc(k) and blackbody deviating duv. Luminance cd per m². Chromaticity coordinates (x,y), (u,v), (u',v'). Relative spectral power distribution p(lambda). Color index ra, ri (i=1 to 15). Color tolerance (sdcm, cie and macadam rectangle u'v' round). Dominant wavelengths, peak wavelengths, central wavelengths, centroid wavelengths, and half width. Light and dark visual ratio s/p. Color purity, red ratio, green ratio, three basic colors stimulus value x,y,z.
