2. Color rendering index

It is also an important aspect to prove the quality of lamps, and the color rendering index (CRI) is an important evaluation method for lamp quality. The International Commission on Illumination (CIE) defines color rendering as: compared with a standard reference light source, the effect of a light source on the color appearance of an object, the higher the color rendering index, the closer the color of the product we see is to natural light. s color. At present, there are mainly products have CRI≥ 80,  CRI≥90, and CRI≥ 97......