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  2. Solar-powered flashlight - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_flashlight

    Solar powered flashlights (American English) or solar powered torches (British English) are flashlights powered by solar energy stored in rechargeable batteries. Most of these flashlights use light-emitting diodes lamps [ 1 ] [ 2 ] since they have lower energy consumption compared to incandescent light bulbs .

  3. Mechanically powered flashlight - Wikipedia

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

    A dyno torch, dynamo torch, or squeeze flashlight is a flashlight or pocket torch which generates energy via a flywheel. The user repeatedly squeezes a handle to spin a flywheel inside the flashlight, attached to a small generator/dynamo, supplying electric current to an incandescent bulb or light-emitting diode. The flashlight must be pumped ...

  4. Flashlight - Wikipedia

    en.wikipedia.org/wiki/Flashlight

    A flashlight or electric torch (Commonwealth English), usually shortened to torch, is a portable hand-held electric lamp. 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.

  5. Olight - Wikipedia

    en.wikipedia.org/wiki/Olight

    Olight, which was established by Fox Fan in Shenzhen in 2007, currently focuses on flashlights [17] that can be rechargeable. [18]In 2014, [19] it launched a new product with a light range of 810 meters, [20] and then a torch with a magnet function.

  6. Freeplay Energy - Wikipedia

    en.wikipedia.org/wiki/Freeplay_Energy

    Weighing about 1 kg (2 lb), the clockwork torch incorporates two improvements over the clockwork radio. First, the on/off switch mechanically halts the spring mechanism from operating. Secondly, internal energy storage in a small rechargeable battery keeps the torch shining while the spring is rewound.

  7. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    A rechargeable lithium-ion version is available in the same size and is interchangeable in some uses. According to consumer packaging, replaces (BR) 2 ⁄ 3 A. In Switzerland as of 2008, these batteries accounted for 16% of lithium camera battery sales. [75] Used in flashlights and UV water purifiers. [135] CR2: 15270 (Li-ion rechargeable, 800 mA)

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