WILLMAR -- The city of Willmar has had no problem with snow crusting on the energy-efficient LED (light-emitting diode) bulbs that have been installed since 2000 in the city's 19 traffic signal ...

The numbers you see on the box don't always work out in real life. LED bulbs do last longer, but those claims about five to 10 years are estimates based on internal testing -- and companies are always ...

This article was featured in One Great Story, New York’s reading recommendation newsletter. Sign up here to get it nightly. The lightbulb was flickering over my head. Not the idealized cartoon ...

Q: My left headlight is dim on my 2013 Ford F-150. I’m wondering if a new bulb might fix it? I was also thinking about installing new lenses, as they are cloudy and have been polished once without ...

The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. There’s a handy trick for reading station signs that otherwise fly past in a ...

If your car came from the factory with halogen or HID bulbs, you’re going to need to replace them or upgrade them down the line. Both of these bulb types lose light output over time; thus, even if ...