Charging mechanism on wind up flashlight

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Size: 5184px × 3456px
Photo credit: © Lyroky / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: black, dynamo, electric, electrical, electricity, gear, gears, generate, generating, generation, generator, machine, mechanical, mechanism, micro, motor, plastic, power, ratio, red, reduction, teeth, train, wire, wires, yellow