Next month marks the four-year anniversary of the world's most ambitious LED street light conversion project. On February 16, 2009, Los Angeles Mayor Antonio Villaraigosa and President Bill Clinton announced a partnership under which the city, advised by the Clinton Climate Initiative, would outfit 140,000 street lights with light-emitting diode (LED) fixtures.
http://www.forbes.com/sites/justingerdes/2013/01/25/los-angeles-saves-




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