Though they're so common that we don't typically give them much thought, lights are fascinating elements of the modern world. By sending an electrical current through a conductor, extreme amounts of ...

As cities around the world ditch old school sodium-vapor streetlights, they’re quickly replacing them with modern LEDs. They’re supposed to be cheaper and longer-lasting than their predecessors, but ...

MIAMI-DADE COUNTY, Fla. — Residents in some South Florida neighborhoods have noticed that their local street lights are turning purple. The Florida Department of Transportation is replacing more than ...

Faulty LED streetlights have been turning purple for years across America. As the lights fail, many are replaced. That has led to years of purple streetlights that seemingly appear and then disappear ...