An arc lamp is a type of electric light that produces light by creating an arc of electricity between two electrodes. This arc generates a bright and intense light, making arc lamps suitable for various applications, including stage lighting and outdoor illumination. They are known for their high efficiency and ability to produce a strong light output. Arc lamps typically use gases, such as argon or neon, to facilitate the arc. When electricity passes through the gas, it ionizes, allowing current to flow and creating the bright light. These lamps have been widely used in cinemas, searchlights, and even in some types of street lighting.