Integral ball is a wall coated with white diffuse reflection material of the hollow sphere, also known as photometric Ball, light pass ball and so on. The ball wall is provided with one or more window holes, which are used as light inlet holes and receiving holes for placing light receiving devices. Can Be used to test the light flux, color temperature, light efficiency and other parameters. It can also be used to measure the reflectivity of an object surface to different wavelengths of light.

UNICO ball is suitable for UNICO UV2800 series, UV2802 series, UV3802 series, UV4802 series UV photometer. It is an ideal tool for material analysis.