Ever since the electric light bulb was conceived in the early 1800s, inventors have sought to improve on its design to provide greater light output, better power efficiency, and increased longevity.

Buying a light bulb used to be a no-brainer. Now it's a brain teaser; the transition to more energy-efficient lighting means choosing from a dazzling array of products. We've long identified bulbs by ...

Reliably generating light with the limited resources at a car’s disposal was a problem for early automotive engineers. Tungsten filaments, similar to the kind found in household incandescent light ...