Company Joins Mayor Vincent Gray for the Installation of the 1,360 Street Lights Marking the End of First Phase of Project Lighting Science Group (OTCBB: LSCG), one of the world's leading LED lighting companies, today joined Washington, D.C. Mayor Vincent C. Gray and officials from the District Department of Transportation (DDOT) and the Department of the Environment (DDOE) to celebrate the completion of the first phase of the relighting project that will save the city tens of thousands of dollars each year in energy costs. Part of the ...