A light box is a device that emits bright, even light, often used for various purposes such as photography, art, and therapy. In photography, light boxes help illuminate subjects to reduce shadows and enhance colors, making them ideal for product photography or artwork displays. In the context of therapy, light boxes are commonly used to treat conditions like Seasonal Affective Disorder (SAD). These boxes simulate natural sunlight, helping to improve mood and regulate sleep patterns during darker months. They typically feature fluorescent or LED lights and are designed to be used for a specific duration each day.