When sodium vapor street lamps were replaced by LEDs, soft yellow light was replaced by crisp white. But the change to purple ...

Have you ever noticed purple street lights while driving? It's definitely odd, and there's a lot of speculation as to why this happens. Here's what we know.

An FPL spokesperson explained that over time, some LED streetlights in FPL’s service area are emitting a violet or purple hue rather than the standard white light because of a manufacturer defect.

In the United States and Canada, there have been many reports of LED street lights that were initially white but have suddenly turned purple. The reason for this change in color of LED street ...

Most importantly, mishaps with purple streetlamps shouldn’t be used to vilify all LED lights, Seshadri says. “The materials that are normally used to make the phosphor are extremely stable ...

I have to admit, this week's What's Up With That? query truly had me stumped. But it turns out blue streetlights are explainable, if not ideal.

Schaumburg is among the places where the purple lights have appeared. The village plans to replace 117 such fixtures along Meacham and Irving Park roads over the next few weeks.

Street lights around the Triangle — including on Duke’s campus — have started emitting a bluish-purple hue. The Chronicle explains why.