When you choose the different LED Lights, you will find some LED Lights that mark the CRI value, 80Ra, 85Ra or 90Ra, so the question is, what is CRI? how to choose the right one?
CRI is the abbreviation of the color rending index, the high CRI value will make the subject more natural. if use the high CRI LED Lights that makes the subject outstanding in color and features of materials, perfectly reflecting the colors of subject and the human beings. it’s an ideal lighting solution for stores that sell fruits or foods.
Ra is the average from R1 to R8, we should not only take attention to average Ra but also on the situation red special R9 and the average Ra(9-12) of red, yellow, green, blue when designing high CRI LED studies have found that there is a gap between the RA and the visual evaluation for the color of the white LED, the color fo the white LED with the lower Ra maybe looks beautiful, the color of the white LED with the higher Ra will look ugly. it can bed ensured the high CRI of white LED when Ra and R9 are both on high value.
R9 refers to a saturated red, with a wavelength of 650nm when the R9<0, the red light is not enough, the red serious distortion, so the lamp can not render in the red color naturally, the number bigger the conductibility of the red light is better, whatever, the R9 bigger, the effect on irradiation in fruit and flowers better, they are more bright-colored, especially, the product is used for commercial lighting, the R9 can not be negative.
so the value of CRI is higher, the reflection of lighting on the products look more natural. so that’s why CRI98 is better than CRI95, and absolutely, the products with higher CRI value, the price is more expensive. if you are looking for LED Strips with a high CRI value, we will recommend the COB LED Strips, which with high-density LED Chips design, a CRI value of more than 90Ra, NO visible light dots and dark area. you can use them for the home applications or high-end lighting projects.