Sustainable Energy Solar-powered warning lights April 8, 2013 Peter Terezakis Spotted these on Bleecker Street, East of Sixth Ave. Solar is less expensive than using the lead-acid batteries which required maintenance and resulted in heavier assemblies. Solar powered warning lights Robust enough for road work Solar powered Solar powered Solar powered Solar powered Share this:SharePrintEmailTwitterLinkedInFacebookLike this:Like Loading... Related
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