An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the socket of a light fixture, which is often called a "lamp" as well.

Lamps are electrical devices that use electrical energy in the form of electrical current. The electrical current flows through the filament in the light bulb, causing it to get hot and glow. The filament gets hot and glows because it is not a good conductor of electricity.