Downlighting Incandescent Recessed Housings: Housing Type - Recessed Downlight; Lamp Type - Incandescent; Nominal Aperture - 4" Round; Installation - New Construction; Ceiling Type - Non-Insulated; Air Rating - Non-Airtight; Depth - 5.00" (127mm); Ceiling Opening - 4.00" (102mm); Manufacturer Series - CAPRI Affex