CRI, colour rendering index, conventional general for 80, special have 90 or even higher, reflecting the light on the true color reproduction, 80 can probably restore 80% of the true color.
Color rendering index (CRI) refers to the light source on the object to restore the sunlight to the human visual perception of the ability of high or low. The higher the color rendering, the closer the CRI value is to 100, the stronger the color reproduction ability of the object, the easier it is for the human eye to distinguish the color of the object.
CRI is a measure of the color discrimination of a light source compared to a standard light source (e.g., daylight). Color rendering index 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, light violet-blue; R8, light red-violet; R9, saturated red; R10, saturated yellow; R11, saturated green; R12, saturated blue; R13, white skin color. R14, leaf green; R15, yellow skin tone. The average of the color rendering index of the first eight common colors, recorded as Ra, characterizes the color rendering of this light source.
Since the CRI value of daylight is 100, the closer we pursue the light to daylight, the more comfortable and realistic the light received by the human eye will be. High color rendering (CRI≥90) luminous body as a light source, emitting a soft and comfortable bright light like the morning sun, reducing visual fatigue, making the field of vision clearer and the image more three-dimensional; bringing users a high color rendering and lightweight outdoor lighting experience.
If long-term in the poor color rendering light, the sensitivity of the cone cells of the human eye will also be reduced, the brain will discriminate things will intentionally or unintentionally more concentrated, easy to bring eye fatigue, and even cause myopia. ADAYO lighting's downlights and spotlights all meet CRI≥80, and this surface led light for ceiling we can achieve CRI≥90.
