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 ...

I've completely swapped my home over to LED lights, and for the most part, I love it. The energy savings are real, and I'm a sucker for all the smart color changing tes. But my biggest grievance is ...