A traditional incandescent bulb has a color rendering index of 100; the highest possible value - the perfect color reproduction analogous to that Sunlight. Many LED bulbs have a CRI of 80 or below and do not come close to the premium models in terms of color rendering, but are cheaper to buy. The majority of our Led Filament bulbs achieve an excellent color rendering index (CRI) of over 90 or even 95 and thus a very high quality of light. You can find the color rendering index (CRI) of the individual lamps in our online shop in the product description. It is also noted on the product packaging.