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  2. 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 ...

  3. Twinkle bulb - Wikipedia

    en.wikipedia.org/wiki/Twinkle_bulb

    The original twinkle bulbs were C7½ and some C9¼ incandescent light bulbs with a bimetallic strip. Once the bulb warms up, the strip pulls slightly away from the contact, opening and interrupting the parallel circuit through the bulb and turning it off. The bulb then cools, allowing the strip to bend back and make contact again.

  4. Flashlight - Wikipedia

    en.wikipedia.org/wiki/Flashlight

    Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes (LEDs) since the early 2000s. A typical flashlight consists of the light source mounted in a reflector, a transparent cover (sometimes combined with a lens ) to protect the light source and reflector, a battery ...

  5. Mechanically powered flashlight - Wikipedia

    en.wikipedia.org/wiki/Mechanically_powered...

    This, along with the long-life light-emitting diode which does not burn out like an incandescent bulb, give the flashlight a long lifetime, making it a useful emergency light. A disadvantage of many current models is that the supercapacitor cannot store much energy in comparison to a lithium-ion cell, limiting the operating time per charge.

  6. Longest-lasting light bulbs - Wikipedia

    en.wikipedia.org/wiki/Longest-lasting_light_bulbs

    The bulb has been noted by The Guinness Book of World Records, Ripley's Believe It or Not!, and General Electric as being the world's longest-lasting light bulb. Many of the longest-lasting light bulbs have been infrequently turned off. Most of the wear and tear that leads to burnouts in incandescent light bulbs is caused by turning them on and ...

  7. Strobe light - Wikipedia

    en.wikipedia.org/wiki/Strobe_light

    A strobe light or stroboscopic lamp, commonly called a strobe, is a device used to produce regular flashes of light. It is one of a number of devices that can be used as a stroboscope . The word originated from the Ancient Greek στρόβος ( stróbos ), meaning "act of whirling".