Unlike color temperature, CRI (or color rendering index) refers to how well a light is able to show an object’s true color. Light bulbs with a low CRI (less than 50) will generate colors that look washed out and dull. On the other hand, LED bulbs, with a CRI of 80 or more, will show a more vibrant and true color. In retail settings or grocery store displays, you should always choose a light bulb with a very high color rendering index. Lights with a higher CRI will illuminate displays more effectively and help attract customers. Read more about CRI on our blog!