A direct-end power feed canopy is mounted to a wall or ceiling perpendicular to the monorail run. It brings power to an end of the monorail run from a remote transformer (sold separately). The low-voltage leads from the remote transformer are connected to the canopy leads inside the electrical box the canopy mounts to the electrical box. 4 inch round canopy: mount to a standard 4 inch electrical box with round plaster ring(not included). 2 inch square canopy: mount to tech lighting's special 2 inch square, 3.5 inch deep electrical box with mounting bar (included). 2 inches x 4inches rectangular canopy: mount to a single gang or gem box (provided by electrician). Finish available in antique bronze or satin nickel. For use with a single feed remote transformer (sold separately.) ETL listed. 4 inch width x 4 inch height x 1.3 inch length.