How To Turn On Light Bulb With Battery. Tape the paper over your batteries with the light at one end and the end of the longer wire and exposed side of the battery on the other. Following on from Edisons first lightblub moment back in 1879 the OUs Stephen Serjeant experiments with an alternative power source - the humble potato.

Electrons flow out of the batterys negative end into the wire go through the light bulb and back into the positive side of the battery. Most light bulbs need more power than youll generate in this project so let me introduce a component called a light-emitting diode or LED. You now have a battery.
The wire provides a conductive path for the electricity.
Safelumin is a high-quality LED light bulb with battery backup that screws into your normal lamp or light fixture. Substitute the grapefruit with other fruit and vegetables lemons limes potatoes to see which one powers the light bulb the best. If you have a piece of fruit a couple of nails and some wire then you can generate enough electricity to turn on a light bulb. The bulb fits a standard socket and.
