A light bulb is a device that produces light when an electric current is passed through it. It consists of a glass bulb or enclosure that contains a filament or other light-emitting element, as well as a base that allows the bulb to be connected to a power source. Light bulbs come in a variety of shapes, sizes, and types, and they are used in a wide range of applications. The most common type of light bulb is the incandescent bulb, which produces light by heating a filament to a high temperature. Other types of light bulbs include fluorescent bulbs, which use a gas discharge to produce light; LED bulbs, which use a semiconductor to produce light; and halogen bulbs, which use a filament and a small amount of halogen gas to produce a bright, white light. Light bulbs are an essential part of modern life and are used in a variety of settings, including homes, offices, and public buildings. They are also used in a wide range of appliances and devices, such as lamps, television sets, and car headlights.
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