Downlighting Incandescent Recessed Housings: Housing Type - Recessed Downlight; Lamp Type - Incandescent; Nominal Aperture - 5" Round; Installation - New Construction; Ceiling Type - Insulated; Air Rating - Airtight; Depth - 7.50" (191mm); Ceiling Opening - 5.75"; Manufacturer Series - ALL-PRO, EI500