Solar-powered information sign in Washington DC, USA.

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Size: 3456px × 5162px
Photo credit: © MARK WILLIAMSON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, american, anti-terrorism, array, cone, dc, illluminated, information, matrix, message, photovoltaic, photovoltaics, police, power, sign, solar, solar-powered, street, sun, sun-powered, suspicion, suspicious, terrorism, traffic, usa, variable, warning, washington