New construction recessed can, ideal for those who have easy access to their ceilings For use in non-insulated ceilings or insulated ceilings where insulation is kept at least 3" from all sides of the recessed light fixture Air-Tite rated design meets restricted air flow code requirements which prevents airflow between attic and living areas and saves on both heating and air conditioning costs Q-Channel bars with Pass-N-Thru feature allows bars to cross-over for tool-less shortening in tight spaces less than 12 in. without removing from the plaster frame Pass-N-Thru bar hangers: Fixture has pre-installed nails that easily installs in regular lumber, engineered lumber, and laminated beams Compatible with a wide variety of 4 inch Recessed light trims but is best with Halo 999, 998, 993, 992, 990, 953, and 951 series models Compatible with a wide variety of 4 inch LED retrofit trims but is best with Halo quality RL, RA, SLD, LT, SMD, and ML series models (Bulb free with some having a 45 year LED lifespan) High performance E26 Series 4 inch Recessed light trim options available Slide-N-Side Junction Box: connectors allow non-metallic sheathed cable for both U.S. and Canada to be installed without tools Socket bracket adjusts lamp to various trim styles and designs