This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — Boulder streetlights will ...

An LED streetlight with a color temperature of 4,000 kelvins and no shields installed is pictured at dusk on Nov. 30, 2017, in the 1600 block of Lindenwood Lane. Going against recommendations from ...

In the past few years, cities have begun using LED lights to illuminate their streets. Los Angeles did it. So did Seattle, Chicago, Boston, Philadelphia and Detroit. But they soon heard from residents ...

Richard G. "Bugs" Stevens does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...

While there are many variations of white LED light available today, they all fall under three basic categorical descriptions: “warm white,” “pure white,” and “cool white.” At opposite ends of the ...

In an update to our recent RedShark Review of the Sekonic C700R spectrometer, here are our findings after pointing the colour temperature measurement device at various common practical lights. A ...