What is the CRI?
It is a parameter that measures the ability of a light source to restore the color of an object. It is used to describe the degree of difference between the color of an object under a light source and the color under a natural light source (such as sunlight).
The color rendering index ranges from 0 to 100, where 100 means that the light source can perfectly reproduce all colors. Generally speaking, light sources with a color rendering index higher than 80 are considered to be able to provide good color reproduction effects, making the color of objects more realistic, natural and accurate.
By using light sources with higher color rendering index, we can more easily distinguish and identify the color of objects. For some places with higher color requirements, such as galleries, clothing stores, cosmetics stores, etc., choose light sources with high color rendering index. Very important. ‼ ️
All in all, the higher the color rendering index, the better the color rendering of the light source and the stronger the ability to restore the color of the object. ⚠️
1. What harm does low color rendering do to people?
(1) (Hygienic Standards for Lighting and Lighting in Primary and Secondary School Classrooms) states: The color rendering index of the classroom lighting source should not be less than Ra80, which is too low for classroom lighting.
(2) The color rendering index affects the recognition of the color of objects by students' eyes, so that objects cannot show their true colors. If this situation continues, it will lead to the decline and decline of color discrimination ability, causing students' color blindness and color weakness and other serious diseases. Vision problems and eye diseases. "
(3) If you are exposed to a light source with poor color rendering for a long time, the sensitivity of the cone cells of the human eye will also be reduced. The brain will consciously or unconsciously concentrate more on distinguishing things. It is easy to cause eye fatigue and even myopia.
2. General application of CRI level!
(1) The lighting of museums and art galleries is larger than Ra98 (bright colors and high degree of restoration)
(2) Indoor lighting should be greater than Ra90 (can satisfy correct color judgment)
(3) Street lights are usually smaller than Ra80 (the color is dim and the degree of restoration is low)
3. Why choose high CRI?
(1) Things are unreal under the light of low CRI, while high CRI has high color reproduction and high color saturation.
(2) It can highly restore the true beauty of home decoration and food colors.
(3) Prevent eye diseases such as myopia, color weakness, and color blindness, and protect eyesight.
4. Tips‼ ️
(1) Different scenes have different requirements for the color rendering index of the light source.
(2) If you want to restore basic true colors and protect eyesight, it is recommended to use lamps with a color rendering index ≥90‼ ️
(3) I recommend lamps with color rendering index ≥90‼ ️