Compact fluorescent downlight horizontal lamp open reflector. Tempered prismatic lens. 7-7/8 in. aperture. White aperture/trim color, semi-specular reflector. 16-gauge galvanized steel mounting/plaster frame with integral yoke to retain optical system. Maximum 1-1/2 in. ceiling thickness. 16-gauge galvanized steel mounting bars. Horizontally-mounted, positive-latch, thermoplastic socket. Emergency battery pack.