This FCW3263 Exterior Decor fixture is ETL listed, US and CA for wet locations. Meets ADA requirements. Housing is marine grade, corrosion resistant, heavy walled, high pressure die cast aluminum construction with die cast back mounting plate. Diffuser is impact resistant, UV stabilized, opal, polycarbonate. Neoprene continuous closed cell urethane "O" ring gasket to seal out contaminants.