LONDON — Startup company Ceravision Ltd. (Milton Keynes, England) has said it has invented a microwave-powered light bulb that is more efficient than filament or fluorescent lighting and with a long ...

LED lights are the latest thing in home lighting, using less energy and lasting longer than their incandescent cousins. How do they work? Find out in the latest installment of Appliance Science.

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 ...