Downlighting High Intensity Discharge Recessed Housings: Housing Type - Recessed Downlight; Lamp Type - Incandescent ; Nominal Aperture - 4 in. Round; Volts/Ballast - 120; Ceiling Opening - 4.75 in. (121mm); Additional Information - Dimension: 11.88 in. L x 4.75 in. W (302x121mm)
Additional Info: Dimension: 11.88 in. L x 4.75 in. W (302x121mm)