Abstract: A hanger assembly comprising a pair of elongate rails is supported by the top surface of a pair of boards in a truss which supports a ceiling. The hanger assembly includes a pair of rails which define a vertical slot therebetween. A clip mounted on the rail assembly is slidable along the length thereof and supports a vertical threaded rod. A junction box is mounted on the lower end of the rod with the lowermost portion of the rod extending below the level of the ceiling. A light fixture is mounted on the lowermost portion of the rod. In another embodiment, a cup suspended on the lowermost portion of the rod supports a screen which covers a hole in the ceiling. Plaster is applied over the screen and cup to patch the ceiling.