The light that comes out is purple rather than blue because with ... With cities working to replace the bulbs, the photographers are busy trying to capture the fleeting moment.

Some of the most important light systems in use are street ... yet fixable issue with the manufacturing of these bulbs, so these strange purple lights will likely become an anomaly of the past ...

According to Scientific American, the purple ... to LED (light emitting diode) lighting for the cost savings in much the same way consumers have been unscrewing old incandescent bulbs in their ...