Here’s a bright idea: Switching to LED light bulbs can help the typical home save about a $1,000 over a 10-year period. That’s roughly $8.33 a month. A recentcost analysis based on a price survey by ...

The color temperature of a light, measured in kelvins, is its most noticeable characteristic. A candle, at 1900 K, appears orange. Daylight, at 5500 K, is much whiter and bluer. A 5500-K bulb, however ...

UK researchers say they have achieved data transmission speeds of 10Gbit/s via "li-fi" - wireless internet connectivity using light. The researchers used a micro-LED light bulb to transmit 3.5Gbit/s ...

As people across the globe are switching to LED lights in an effort to save energy and money, they may be making another problem worse. Light pollution has been a growing problem for decades, and the ...

A recent post on the U.S. phase-out of 40- and 60-watt low-efficiency incandescent light bulbs, which became official January 1, elicited a lot of response from readers. Many commenters were critical ...

New efficiency rules, more than a decade in the making, have taken effect, relegating Edison’s glowing orbs to the history books. By Hiroko Tabuchi Hiroko Tabuchi has reported on the climate toll of ...

KYIV, Jan 30 (Reuters) - Ukrainians were urged on Monday to swap old light bulbs for free energy-efficient LED bulbs under a scheme intended to ease an energy shortfall caused by Russian attacks.