Neon lamps are gas-discharge lamps that produce light when an electric current passes through a gas, typically neon. When energized, the gas emits a bright, colorful glow, often seen in signs and decorative lighting. These lamps are known for their vibrant colors, which can be achieved by using different gases or phosphor coatings. The design of neon lamps is simple, consisting of a sealed glass tube filled with gas. They are energy-efficient and have a long lifespan, making them popular for both commercial and artistic applications. Neon lamps can be shaped into various forms, allowing for creative displays and signage.