A measure of the degree of color shift that objects undergo when illuminated by the light source as compared with those same objects when illuminated by a reference source of comparable correlated color temperature. The maximum CRI is 100.
The ability to render colors to a standard.
A measure of the color shift created by artificial light. Color rendering is measured on a scale from zero to 100, with natural outdoor light having a CRI of 100. The higher the index, the more true to life colors appear".