flashlight

A flashlight (more often called a torch outside North America) is a portable hand-held electric light. Usually, the source of the light is a small incandescent light bulb or light-emitting diode (LED). A typical flashlight consists of a light bulb mounted in a reflector, a transparent cover (sometimes combined with a lens) to protect the light source and reflector, a battery, and a switch. These are supported and protected by a case.
The invention of the dry cell and miniature incandescent electric light bulbs made the first battery-powered flashlights possible around 1899. Today flashlights use mostly incandescent lamps or light-emitting diodes and run on disposable or rechargeable batteries. Some are powered by the user turning a crank or shaking the lamp, and some have solar panels to recharge a battery.
In addition to the general-purpose hand-held flashlight, many forms have been adapted for special uses. Head or helmet-mounted flashlights designed for miners and campers leave the hands free. Some flashlights can be used underwater or in flammable atmospheres.

View More On Wikipedia.org

    Recent Content Tagged With flashlight

  1. slickguns
  2. slickguns
  3. slickguns
  4. slickguns
  5. slickguns
  6. slickguns
  7. slickguns
  8. slickguns
  9. slickguns
  10. slickguns
  11. slickguns
  12. slickguns
  13. slickguns
  14. slickguns
  15. slickguns
  16. slickguns
  17. 9mm guy
  18. 9mm guy
  19. 9mm guy
  20. slickguns