The best battery backup bulbs can be charged by putting them in a light socket for a conventional lamp or lighting fixture to charge.

In this informative and engaging video, learn how to transform a simple DC motor into a generator capable of lighting up ...

This is a common activity for all types of classes. Basically, you give students a battery, a bare copper wire and a small light bulb. The students are asked to find out different ways to make the ...

What’s really interesting about this build is it provides a use for blown compact fluorescent bulbs. The normal failure mode of these light bulbs is usually the electronics going bad, not the tube.

Electrical circuit with lemons. A chemical reaction between the copper and zinc plates and the citric acid produces a small current, that is able to power a light bulb.