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 ...

Along with being brighter, LED bulbs tend to use less power and have a much longer average lifespan compared to conventional halogen bulbs. Now that LED lighting technology has gotten significantly ...

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 ...

Last year I visited Switch Lighting, a small Silicon Valley company that claimed to have built something revolutionary. Switch’s product: a light bulb that produced the same warm, comforting glow that ...

Add Yahoo as a preferred source to see more of our stories on Google. Here's why you might want to consider swapping out all your incandescent bulbs for more efficient sources of light. (Getty Images; ...

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's ...

When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. Despite their advantages over ...