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2. Flashlight - Wikipedia

   en.wikipedia.org/wiki/Flashlight

   Left to right: 3x AA to D parallel battery converter with rechargeable NiMH AA-size batteries inserted. MY DAY vintage flashlight. It uses 1.5 V D-size batteries. Sofirn SP36 flashlight. It features a 5 V 2 A USB-C charging port to load 3.7 V 18650 rechargeable lithium-ion batteries. The most common power source for flashlights is the battery.

3. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   However, some wireless security cameras are battery-powered, making the cameras truly wireless from top to bottom. Wireless cameras are proving very popular among modern security consumers due to their low installation costs (there is no need to run expensive video extension cables) and flexible mounting options; wireless cameras can be mounted ...

4. 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]

5. 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 ...

6. Solar-powered flashlight - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_flashlight

   Solar powered lights need not be manually recharged as in the case of conventional battery operated flashlights. [3] Pollution from discarded batteries used in normal flashlights is eliminated. [4] Solar powered flashlights can be used in remote locations where it is impossible to find any source of electricity except for solar power. [4]

7. Battery energy storage system - Wikipedia

   en.wikipedia.org/wiki/Battery_energy_storage_system

   A rechargeable battery bank used in a data center Lithium iron phosphate battery modules packaged in shipping containers installed at Beech Ridge Energy Storage System in West Virginia [9] [10] Battery storage power plants and uninterruptible power supplies (UPS) are comparable in technology and function. However, battery storage power plants ...