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2. Solar-powered flashlight - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_flashlight

   A typical solar flashlight can give useful levels of illumination on objects up to 50 metres away, and beam may be visible for much longer distances. The solar cells used for battery charging have an indefinite life expectancy. A solar powered flashlight may give several hours of light after being charged during the day. [3]

3. Flashlight - Wikipedia

   en.wikipedia.org/wiki/Flashlight

   An LED flashlight has a longer battery life than an incandescent flashlight with comparable output. [10] LEDs are also less fragile than glass lamps. LED lamps have different spectra of light compared to incandescent sources, and are made in several ranges of color temperature and color rendering index. Since the LED has a long life compared to ...

4. Torchy the Battery Boy - Wikipedia

   en.wikipedia.org/wiki/Torchy_the_Battery_Boy

   Torchy the Battery Boy is a British children's puppet television series, the second to be produced by AP Films (APF), which first aired on the ITV network between 1959 and 1961. Created and written by author Roberta Leigh , it had music by Barry Gray , art direction by Reg Hill and special effects by Derek Meddings .

5. Mechanically powered flashlight - Wikipedia

   en.wikipedia.org/.../Mechanically_powered_flashlight

   The best designs use a supercapacitor instead of a rechargeable battery, since these have a longer working life than a battery. 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 ...

6. Olight - Wikipedia

   en.wikipedia.org/wiki/Olight

   Olight is a flashlight brand [4] that was founded in 2007 by Fox Fan. [5] The brand is headquartered in Taiwan, [6] and has operations in Georgia, United States. [7] Olight specializes in the production of flashlights, [8] including LED flashlights, [9] survival lights, [10] and tactical flashlights. [11] In addition, it also produces headlamps ...

7. Flash (photography) - Wikipedia

   en.wikipedia.org/wiki/Flash_(photography)

   A flashcube was a module with four expendable flashbulbs, each mounted at 90° from the others in its own reflector. For use it was mounted atop the camera with an electrical connection to the shutter release and a battery inside the camera. After each flash exposure, the film advance mechanism also rotated the flashcube 90° to a fresh bulb.