Abstract: An assembly for illuminating a sign having an enclosure covered by a translucent panel includes a plurality of track molding sections, each having at least one circuit board electrically connecting a plurality of LEDs mounted thereon, integrated into a unitary structure by brackets or a stencil with the molding sections secured in a configuration suitable to be inserted into the enclosure and to illuminate the translucent panel. The unitary structure is secured in the enclosure into which has been inserted by sheet metal screws, epoxy glue, double backed adhesive strips or the like. Preferably, if brackets are used, at least two of the brackets extend to a side wall of the enclosure and a plurality of screws fasten the brackets to the side walls of the enclosure to which they extend.