Change kinetic energy from your hand into light energy. This hand-held “dynamo” is easily visible. It clearly demonstrates how electrical energy can be produced by moving an electrical conductor through a magnetic field — a discovery made by Michael Faraday in 1831.
This unit has a built in non-rechargeable, non-replaceable battery that can provide light for many hours showing the efficiency of modern LED lighting technology. However, no batteries are ever required – no bulbs to replace. This is a great safety item. Place one in your car, next to your bed, or in your tool box and you will always have light when you need it without the worry of discovering dead batteries!