The droplet-based electricity generator has a high energy-conversion efficiency and power density thousands of times bigger than its counterparts. The developers hope the tech will help to tackle the ...

Which LED light bulbs are best? Finding the best LED light bulbs for your house, office or otherwise can be more complicated than it seems. It’s easy enough to pick out a random A19 light bulb, but ...

LED bulbs are energy-efficient and designed to last for many years, but here are a few lesser-known features to consider when weighing a jump to LEDs. Martin LaMonica is a senior writer covering green ...

Working as an interior designer means you will invariably be the one who sweats the small stuff—the one who deliberates over two nearly indistinguishable shades of white. I’ve ...

GE’s connected LED bulb can’t change colors like some other LEDs, but it’s relatively inexpensive and delivers all kinds of smart features when used in conjunction with a ZigBee hub. Update, ...

Dear EarthTalk: What's the story with LED light bulbs that are reputed to be even more energy-efficient than compact fluorescents? — Toby Eskridge, Little Rock, Ark. Perhaps the ultimate "alternative ...