A cutaway technical diagram of a hand-crank dynamo flashlight, showing gears, alternator, battery, LED lamp, and parabolic reflector.

A cutaway technical diagram of a hand-crank dynamo flashlight, showing gears, alternator, battery, LED lamp, and parabolic reflector.

Schéma d’une lampe a dynamo avec Manivelle • Engrenages • Alternateur • Batterie (ou accumulateur) • Lampe LED • Réflecteur See more

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