All Pro Recessed Light Recessed A19 R16 Par20 4 In. Use with non insulated ceilings or insulation must be 3" away up to 5/8" ceiling thickness Includes airtight remodel recessed housing (APERT400RATSB) and clear trim (APERT403) Use bulbs: 40W A19, 40W R16, 50W PAR20 (7) 1/2" knockouts for "NM" cable 5"H 4" clear secular reflector kit