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long lasting light bulb
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For more on marking an answer as the "Best Answer", please visit our FAQ.You could be talking about one of two things. There are long-life normal filament bulbs with an average life of 2000 hours. These are harder to find these days. They look the same as normal bulbs, BHS used to sell them and the last ones I bought came from John Lewis. These use the same amount of electricity for the given Wattage as a normal bulb. They cost a few pence more than a normal one. A normal life has an average life of 1000 hours.
Or you could be talking about the energy saving bulbs that are cheaper to run AND last a lot longer - average life of 10000 hours. These are effectively small fluoresecent units in a bulb shape. They are slow to warm up - about 90 seconds before the light is on fully, and the light output is more white than pale yellow. They cost �3 to �5 but use about one quarter the electricity for the same light output.
One other point about these CFL is that you not might want to use them in fully enclosed light fittings where they can get hot as this seems to shorten their lifetime a lot.
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