UV light is reflected off water, sand, snow and concrete. Wear sunscreen even in winter and during cloudy weather. Damaging UV light from the sun still occurs; it is just not as strong as on a sunny ...

The light strand is 25 feet long with 25 screw-in incandescent glass bulbs in five colors. The sockets have clips molded into them to help hang the lights and orient them the way you want.

Trump was speaking to reporters after meeting with Canadian Prime Minister Mark Carney, who is hosting the summit in Kananaskis, along the Canadian Rocky Mountains. The U.S. president has levied ...

Philips’s history in lighting goes back to 1891, when Frederik Philips started making carbon-filament incandescent light bulbs in a factory in the Netherlands.

But if light bulbs have a dark side, it’s that they have stolen the night. The excess light we dump into our environments is endangering ecosystems by harming animals whose life cycles depend on ...