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Tungsten Filament Lamps (Traditional)

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Incandescent bulbs are manufactured in a wide range of sizes, light output, and voltage ratings. They require no external regulating equipment, have low manufacturing costs, and work equally well on either alternating current or direct current. As a result, the incandescent lamp is widely used in household and commercial lighting, for portable lighting such as table lamps, and flashlights, and for all types of decorative and advertising lighting

Incandescent bulbs are much less efficient than most other types of electric lighting; incandescent bulbs convert less than 5% of the energy they use into visible light(with the remaining energy being converted into heat).