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DIY Science Projects

Crank flashlight

Building this torch (flashlight) helps to understand how it is possible to transform mechanical energy into electricity. This type of transformation is achieved in most of our power plants.

This project reveals all the components of an electric generator. By using a small electric motor the 'other way round', it shows the difference between an electric motor and a dynamo

This crank flashlight works without the use of batteries that are costly and polluting. It also operates with an ultra bright LED bulb that is very energy efficient and has a lifetime of 100'000 hours!


Difficulty
Difficult
Duration
3h
Rating
4/5
Price
~ 12 CHF
Testimonials
2

Date14.01.2012
AuthorMartin
Translatorlili
Final purposeProduce light or heat
FieldEnergy
Substainable development
Mechanics
Languagefrançais deutsch english
Licence