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  2. Longest-lasting light bulbs - Wikipedia

    en.wikipedia.org/wiki/Longest-lasting_light_bulbs

    The fifth-longest-lasting light bulb was located in a fire house in Mangum, Oklahoma. It was installed circa 1926–1929. The bulb was not attached to any special electrical supply, and when the power went off, so did the bulb. [2] The firefighters in Mangum were willing to show visitors the light bulb as long as they were not busy with ...

  3. Palace Theater Light - Wikipedia

    en.wikipedia.org/wiki/Palace_Theater_Light

    The bulb has its own power supply. [4] The Palace Theater Light was once thought to be the longest-running light bulb in the world. [5] [3] It appeared in the 1970 edition of the Guinness Book of World Records before it was replaced by the Centennial Light two years later when it was discovered to be older.

  4. Centennial Light - Wikipedia

    en.wikipedia.org/wiki/Centennial_Light

    The pendant light at Fire Station #6 in which the bulb is installed. The Centennial Light was originally a 60-watt bulb, but has since dimmed significantly and is now as bright as a 4-watt bulb. [7] [8] [9] The hand-blown, carbon-filament common light bulb was invented by Adolphe Chaillet, a French engineer who filed a patent for this socket ...

  5. Blue light spectrum - Wikipedia

    en.wikipedia.org/wiki/Blue_light_spectrum

    It emits more blue light than traditional incandescent bulbs, potentially impacting the quality of sleep and eye health if used excessively at night. [2] [8] A person using a smartphone at night. Blue light is emitted by digital screens such as computers, tablets, smartphones, and televisions, which can lead to extended exposure in modern lives ...

  6. The Light Bulb Conspiracy - Wikipedia

    en.wikipedia.org/wiki/The_Light_Bulb_Conspiracy

    The Light Bulb Conspiracy, also known as Pyramids of Waste, [2] is a 2010 documentary film written and directed by Cosima Dannoritzer. An international co-production of France and Spain, the documentary thematizes the planned obsolescence of industrial products for commercial reasons.

  7. Category:Lists of longest-duration things - Wikipedia

    en.wikipedia.org/wiki/Category:Lists_of_longest...

    Longest-lasting light bulbs; List of oldest companies in Australia; List of longest gaps between studio albums; M. ... This page was last edited on 4 February 2024, ...

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