Gas discharge lamps are lighting devices that produce light by passing an electric current through a gas. This process excites the gas atoms, causing them to emit light. Common types of gas discharge lamps include neon lamps, fluorescent lamps, and high-intensity discharge (HID) lamps. Each type uses different gases and technologies to create various colors and intensities of light. These lamps are known for their energy efficiency and long lifespan compared to traditional incandescent bulbs. They are widely used in commercial and industrial settings, as well as in street lighting and decorative applications. Their ability to produce bright light makes them suitable for various environments.