They've had a good long run, 134 years, but come January most screw-in incandescent lightbulbs will have been phased out because they use too much energy. There's no need to hoard bulbs.

Dominion Energy customers in Virginia can have their lightbulbs replaced with energy-efficient bulbs for free, potentially ...

Compact fluorescent bulbs are suitable for general interior lighting in spaces like hallways, kitchens, and bathrooms.

For one thing, LED bulbs are way more efficient than older types of lighting technology. The Second Law of Thermodynamics dictates that every mechanism (natural or man-made) that transfers energy ...

Liam Denning is a Bloomberg Opinion columnist covering energy. A former banker ... in 2007 to encourage a switch from incandescent bulbs to far more efficient LEDs. The EPA doesn’t actually ...