Sun lamps refer to artificial light sources that mimic the natural light of the sun. These lamps emit full-spectrum light that can help alleviate symptoms of seasonal affective disorder (SAD) and enhance vitamin D production. Other synonyms for sun lamps include light therapy lamps, light boxes, UV lamps, tanning lamps, and light therapy devices. Some people also refer to these lamps as SAD lamps since they are commonly used to treat SAD. Whatever you call them, sun lamps are an effective and convenient way to get the benefits of sunlight indoors. They are available in various sizes and shapes, making it easy to find one that suits your needs.