Description
A incandescent bulb, a light bulb, or an incandescent bulb is an artificial light source that emits bright white light. In these lamps, the electric current passes through a thin metal wire called tungsten, which has a relatively high electrical resistance (compared to copper wire) and makes it extremely hot. The thin filament is illuminated by heating. A closed glass bubble prevents oxygen from reaching the filament, otherwise the filament will oxidize quickly and burn.
Incandescent lamps are made in a variety of sizes and voltages (and capacities), from 1.5 volts to 300 volts. This type of lamp does not require additional equipment and has a very low production price and works with both direct and alternating current types. As a result, incandescent bulbs are widely used in home and commercial lighting, non-stationary lights, reading lights, car headlights, flashlights, advertising and decoration.
In some applications, such as incubators (to heat eggs), heat from incandescent lamps is used. Infrared heat is used for crawling tanks, remote heating, industrial heating and drying, and in easy-to-bake ovens. In cold weather, the heat from incandescent bulbs can contribute to home heating, but in the tropics it causes more energy loss from air conditioning systems.
