The standard light source printing reference table is widely used in the printing field to accurately compare the color deviation of printed materials. Because different light sources have different radiation energies, they will appear in different colors when illuminated on objects. In the color management of printing production, although the quality inspector has carefully compared the colors of the goods, the color difference judgment of the goods is not accurate due to non-standard environmental light sources or inconsistent light sources used by the customer. The colors seen under different lighting conditions are different. Customers may complain or even return goods due to color differences exceeding the standard range during inspection, which seriously affects the company's reputation. A useful method to effectively solve the above problems is to verify the color of the goods under the same light source and controllable conditions. For example, in international standards, artificial daylight D65 is often used as the standard light source for evaluating the color of goods. Especially during night shifts, it is particularly important to use standard light sources to verify the color deviation of goods. The printing sample stand also provides options for light sources such as D65, D50, TL84, CWF, etc., and has the function of testing homochromatic heterochromatic effects.