Halo, 6" Recessed Housing, For New Construction, Use In 2" x 8" Joist Construction, Integral Thermal Protector, Rated For Insulated Ceilings, Adjustable Socket Bracket, Junction Box Listed For Through Circuit Wiring, 7 Each 1/2" Ko's, 4 Each Non-Metallic Ko's With Pry Out Slots & Strain Relief, Plaster Frame Includes Locking Screw For Hanger Bars, Adjusts To Ceiling Thickness, Pre-Installed Captive Nailless Bar Hangers To 24" Joist Span, Bar Hangers Can Be Repositioned 90 Degree Without Tools, Hangers Fit To T-Bar Spline, Actual Size 7-1/2" H, 6-1/2" Opening, Housing UL, CSA Damp Location, IP Rated, UPC Bulk.