It’s that time of year again, when the fuzzy socks are working overtime, the heat is cranking and somehow lots of homes are still freezing.

LED bulbs come with big promises, like energy savings and lights that will last for years of use without burning out like old incandescents. Many of those promises are true, but we bet you've noticed ...

More than one-fifth of US electricity is used to power artificial lighting. Light-emitting diodes based on group III/nitride semiconductors are bringing about a revolution in energy-efficient lighting ...

Discover how to build a magnetic repulsion motor capable of lighting LED bulbs using only magnets and basic components. This ...