Dedicated new construction housing for use in insulated ceilings can be in direct contact with insulation.* Air-tight construction provides energy savings by reducing the flow of air through the ceiling. The housing is labeled for use with LED downlights or as an outlet box. Includes two adjustable bar hangers with captive nails for easy installation. Input Voltage: 120/277VAC Socket: Quick connect for LED downlights Wattage: 12W max. Compatible Downlights: NOXAC-4RGTWWW: 4" AC Onyx LED Adjustable NOXAC-4RWTWWW: 4" AC Onyx Round LED Wall Wash NOXAC-4SWTWWW: 4" AC Onyx Square LED Wall Wash NPR-4RC: 4" Pearl LED Adjustable Cone NPR-4RG: 4" Pearl LED Adjustable Gimbal NPR-4RNB: 4" Pearl LED Bullnose NPR-4SC: 4" Pearl LED Square Adjustable Cone NPR-4SG: 4" Pearl LED Square Adjustable Gimbal NPR-4SNB: 4" Pearl LED Square Bullnose NSLIM-4RL1TWMPW: 4" Slim LED Surface Mount