An electronic billboard generally includes a plurality of hand mountable structural frames mounted to the poster panels of an existing in field non electronic static billboard; the hand mountable structural frames being laid out in an array; and where individual ones of the hand mountable structural frames are configured in a further array of structural bay members adapted to receive therein display modules with dual LED display panels; a plurality of preformed power and data harnesses electrically and mechanically coupled between individual ones of the bays and a universal power and data distribution system coupled to the harnesses for providing data and direct current low voltage to the display modules to facilitate the conversion of the distributed data display information into visible radiant energy which is displayed by the electronic billboard.