Color rendering refers to how accurately a light source displays colors compared to natural light. It is often measured using the Color Rendering Index (CRI), which ranges from 0 to 100. A higher CRI indicates that colors appear more true to life, making it essential for tasks like painting or photography where color accuracy is crucial. Different light sources, such as LEDs, fluorescent bulbs, and incandescent lamps, have varying CRI values. For example, incandescent lamps typically have a CRI close to 100, while some LEDs may have lower values. Understanding color rendering helps in choosing the right lighting for specific environments.