And if the problem were the chemical degradation of the phosphor layer, the color would gradually turn ... purple streetlights aren’t good for driver or pedestrian safety. First, it’s possible ...

As cities around the world ditch old school sodium-vapor streetlights ... As to why they're turning purple: in a nutshell, modern LEDs convert electricity to light via an electronic chip.

Pittsburgh begins its $15 million replacement of all 35,000-plus streetlights around town over the next two years.

Anecdotal reports of purple streetlights have been popping up around ... on social media with many drivers wondering who or what is turning the lights a resplendent violet? The answer, apparently ...

The "spotlight" he's referring to is a new LED streetlight, which appears much brighter than the traditional high-pressure sodium lamp that was there before. High pressure sodium streetlights emit ...

Over the years, a number of cities have experimented with their streetlights, sometimes turning them up and sometimes ... “notable increases” in the first six months. The evaluators speculated ...

At a press conference in the Manchester neighborhood Tuesday evening, Mayor Ed Gainey instructed crews to turn on the new LED streetlights — a vivid contrast to the old high-pressure sodium ...