LED fixtures

March 14, 2012, 11am PDT
The Emerald City puts the streetlight of the future to the test – for both safety and feel, and the results could affect how cities everywhere are illuminated in the future, reports William Yardley.
New York Times
July 31, 2009, 6am PDT
South Broad Street in downtown Philadelphia looks a bit blue at times. But stick around for a few minutes and its complexion changes.
New Urban News