Fluorescent lamps are a type of electric light that uses gas and a phosphor coating to produce visible light. When electricity passes through the gas, it emits ultraviolet (UV) light, which then excites the phosphor coating inside the lamp, causing it to glow. These lamps are commonly used in homes, offices, and schools due to their energy efficiency and long lifespan compared to traditional incandescent bulbs. Fluorescent lamps come in various shapes and sizes, including tubes and compact designs. They are often more efficient than incandescent bulbs, using about 75% less energy for the same amount of light. Additionally, they have a longer operational life, typically lasting around 7,000 to 15,000 hours, making them a popular choice for both residential and commercial lighting needs.