How does the Color Rendering Index (CRI) function?

The Color Rendering Index (CRI) is a metric that measures how accurately a light source illuminates colors in comparison to a natural reference light source, such as sunlight. A high CRI value (typically between 80 and 100) indicates that the light source reveals the true colors of objects, making them appear more vibrant and true to life. This is particularly important in settings like kitchens, where accurate color perception can influence decisions about materials, finishes, and design choices.

In contrast to the other options, which address different aspects of lighting—like energy efficiency, lifespan, or brightness—CRI specifically focuses on the quality of light and its effect on color appearance. Understanding CRI helps designers and homeowners select lighting that enhances the aesthetic appeal of spaces while ensuring that colors are represented accurately.