As cities and towns switch their streetlights from sodium lamps to LEDs, some lights have turned purple, apparently the result of a manufacturing defect.

As cities and towns switch their streetlights from sodium lamps to LEDs, some lights have turned purple, apparently the result of a manufacturing defect.

Drivers throughout Florida may have noticed some streetlights are giving off the wrong kind of glow at night.

For today’s Good Question, Katie asks, “I’d love to know why there are two street lights on the outer loop of Man O’ War that seem to have purple bulbs. Is there a purpose or reason for ...

The decision by the city of Los Angeles last year to replace its high-pressure sodium streetlights—known for their distinctive yellow hue—with new, ...

The San Francisco Public Utilities Commission announced in April that it plans to replace 18,500 of the 25,000 high-pressure sodium streetlights it owns in the city with more efficient LED ones.

Easy-to-install T5, T8 and PLL LED lamps are designed to provide a long life and energy-saving solutions for commercial building retrofits ...

Solar-powered LED streetlights. Talk about a clean tech merger of concepts. North Carolina's Cree is working with Multi-Cell Semiconductor to install solar-powered streetlights in Guangzhou, China.