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Waterproof led flood lights factory|The difference between the color rendering index CRI and Ra

2022/07/19

CRI, is the abbreviation of color-rendering index, Chinese for "color rendering index", is a broad term.

Ra, is the "general color rendering index" symbol, which is the average of the first 8 color rendering indexes among the 15 color rendering indexes.

 

Color rendering index CRI has 15 colors, 15 color names: R1, light gray-red; R2, dark gray-yellow; R3: saturated yellow-green; R4, medium yellow-green; R5, light blue-green; R6, light blue; R7, lavender blue; R8, mauve; R9, saturated red; R10, saturated yellow; R11, saturated green; R12, saturated blue; R13, caucasian skin tone; R14, leaf green; R15, yellow race color.

 

RA is the average value of the color rendering index of the first 8 common colors, which is recorded as Ra, which characterizes the color rendering of this light source.

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