Wind up torches

[Evergreen]

How do they work?

[Ernie Cooksey]

think you wind them up.

[Evergreen]

I meant how does it generate enough power to light the led's?

[swannsong]

think you wind them up.

That often creates a lot of energy on this forum !

There IS a battery inside to start with.

The battery can only hold enough power for the light for a finite amount of time, so it needs to have the battery changed or recharged. In this case, it's recharged.

The crank turns a large magnet (there's a magnet inside these flashlights) very quickly through a bunch of coiled wires. As the magnet runs through the coiled wires, it induces an electric current in the wires. This electric current re-charges the battery, which then powers the light.

[Ernie Cooksey]

I meant how does it generate enough power to light the led's?

I know, just on a wind up.

[Evergreen]

think you wind them up.

That often creates a lot of energy on this forum !

There IS a battery inside to start with.

The battery can only hold enough power for the light for a finite amount of time, so it needs to have the battery changed or recharged. In this case, it's recharged.

The crank turns a large magnet (there's a magnet inside these flashlights) very quickly through a bunch of coiled wires. As the magnet runs through the coiled wires, it induces an electric current in the wires. This electric current re-charges the battery, which then powers the light.

Thank you. If only Cloister had got an answer for his question. His ban should be revoked. Justice for Cloister!

[Evergreen]

I suppose it is technology