Xenon lamps are a type of gas discharge lamp that produces light by passing an electric current through xenon gas. They are known for their bright, white light and are commonly used in applications such as automotive headlights, projectors, and photography. The light emitted is similar to natural daylight, making them popular for various lighting needs. These lamps operate at high pressure and require a special ignition process to start. Once ignited, they provide a high lumen output and have a longer lifespan compared to traditional incandescent bulbs. However, they can be more expensive and require specific fixtures for installation.