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Humphry Davy incandescent light bulbs consist of an air-tight glass enclosure with a filament of tungsten wire inside the bulb, through which an electric current is passed.
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Warren De la Rue used a platinum coil in a vacuum sealed tube and ran an electric current through it to make an incandescent light bulb. Even though it was not a success, it sparked a the revolution of the light bulb.
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He was granted the world's first patent for an incandescent lamp, using powdered charcoal heated between two platinum wires contained within a vacuum bulb. His light bulb was also so a bust but, he never stop try to perfecte it.
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He invented the first incandescent lamp with a paper filament. This was perfect for commercial use because paper was cheap to make and buy. Even though it was cheap it still did not last a long time/ made a couple of hours.
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He created a new lamp that used a carbon filament. This light bulb first lasted for about 13.5 hours, and later improved that to a stunning 40 hours. This was the first one that went up for commerical use.
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The impact fluorescent light bulb was made in Shanghai Xiangshan.There are two types of CFL integrated and nonintegrated lamps.
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