red light bulb |
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| navigate by keyword : arc argand bernocchi blue compact discharge drummond electric fluorescent gas germicidal halogen incandescent kerosene lamp lava light luminator nernst oil oxidized photoflood sodium vapor xenon yablochkov |
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| The incandescent lamp is an electrical device that transforms electric energy into light energy and thermal energy through the Joule effect. Given its simplicity, it was the first practical device that allowed the use of electricity for lighting, and during the first decades of commercial use of electricity was the main form of consumption of that form of energy. |
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