For example, let's talk about a few life scenes that everyone will encounter: The light source with higher R9 color rendering index is used in the iron plate string, so it looks more glossy and delicious; The red skirt using the light source with higher R9 color rendering index also looks more bright and bright; The fruit in the supermarket looks more mouth watering than the fruit you see at the roadside stall because of its good light source RA color rendering index.

R9 color rendering index is particularly important for the lighting source of meat products window in supermarkets and stores; The R15 index of lighting source must not be low for the studio, studio and other occasions that need to truly reproduce the skin color; Museums, art galleries and other places require that all colors be highly authentic, and the requirements for RA and R1-R15 index are more stringent.