Build your own hand-crank flashlight and explore the fascinating process of energy transformation! Watch as mechanical energy from cranking converts into electrical energy, powering the LED light - no batteries required.
Hand-Crank Flashlight DIY Kit, Educational STEM Toy
$18.00
Sale price
$18.00
Regular price
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Hand-Crank Flashlight DIY Kit, Educational STEM Toy
$18.00
Sale price
$18.00
Regular price