Since the earliest versions of indoor LED light bulbs were developed, their designers have faced a variety of technical challenges. These include AC-to-DC power conversion, thermal design/heat-sinking ...

18-year-old electrical engineer student, Chris Rieger, has been working on his levitating light bulb project — fittingly referred to as the “LevLight Project” — for about six months now. Recently he ...

Kids love building electric circuits, but connecting light bulbs to batteries with fiddly wires is tricky for young hands. Play dough and light-emitting diodes (LEDs) solve the problem beautifully.

.. The intention was good: Maryland power companies would help customers save electricity by providing discounted or free energy-efficient light bulbs. But consumers have discovered they’re paying for ...

Fran: Ahhh, I almost won that one as well! Now, our appliances and devices, they all work because of the electrical current that flows into them through a circuit. An electrical circuit is made of a ...