The degree to which the light source appears to the color of the object is called color rendering, that is, the degree of colorrealism. The light source with high color rendering performs better on the color. The color we see is closer to the natural color, and the color with low color rendering is light. The performance of the color is poor, and the color deviation we see is also large.
Why is there a color rendering? The key is the spectral characteristics of the light. The wavelength of visible light is in the range of 380 nm to 780 nm, which is the red, orange, yellow, green, blue, and blue we see in the spectrum. The range of purple light, if the proportion of the light contained in the light emitted by the light source is close to the natural light, the color seen by our eyes is more realistic.