DL 4 RDThe DL 4 RD Series, LED shallow surface dome is designed for use in direct mount into square and octagonal 4″ J-Box and also compatible with most 4″ recessed standard and shallow down lights in both new construction and remodel applications. Designed for most easy installation among these types of lights. It comes with a disconnect screw-in base lead for easy installation into standard incandescent sockets.