A lighting assembly is provided having a main housing and retaining member hinged to the main housing. The housing has an open end with a channel for receiving and supporting a lens, diffuser and/or grate. The retaining member is hinged to close the open end of the housing and prevent removal of the lens, diffuser and grate. The retaining member is coupled to the housing by pivot pins that are received in elongated slots in the side of the housing. The retaining member is pulled away from the housing where the pivot pins slide to an outward end of the slot and then pivot in an upward or downward direction to allow removal of the lens, diffuser and grate.