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 lights ...

Smartphone screens are made up of more than just a tough piece of glass. Underneath, they contain sensitive layers that create the image you see and sense your touch. There’s the digitiser, which ...

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 ...