The new luminance and colorimeters UA-20C and UA-20Y are equipped with the latest 24.5 million-pixel industrial CMOS to achieve low luminance and accurate chromaticity acquisition under fast measurement. Luminance-chroma type UA-20 and Luminance-only UA-20Y have 3 types of lenses (standard/wide-angle/telephoto) corresponding to various sample sizes. In addition, the macro lens under development can be used for AR/VR display. With a wide luminance measurement range of 0.01cd/m2 to 500 million cd/m2 with ND filters, it can test high-intensity LEDs and LDs. In addition, the compact palm size and standard software CI-100 and SDK make system integration easier. UA-20C/20Y is the best solution to improve the efficiency of optical testing.