The Halo Recessed H36LVRTAT is a Non IC AIR TITE remodel fixture for use with H3 3 Inch series trims. for installation from below the ceiling. Housing is AIR TITE rated to prevent airflow between heated or air conditioned spaces and unconditioned attic/plenum areas. for use with 12 Volt MR16 lamps. Non IC Housing is AIR TITE but insulation must be kept 3 Inch away from all sides of housing.