Faraday Perpetual Flashlight, (Dyno torch)

teaching student electromagnetic mechanism

-with rechargeable battery

-LED

-3.6V, 40mA

-size: 42mm x 210mm (dia. x L)

-weight: 80g

* Shake 5 minute (2 times/second) can charge full battery. full battery torch can use 12hours

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Faraday Perpetual Flashlight, (Dyno torch)

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