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 Wattage: 12W max. Compatible Surface Mounts: NELOCAC-4RP: 4" ELO+ LED Surface Mount NLOPAC-R4TW: 4" AC Opal LED Surface Mount with Selectable CCT NLOPAC-R4509T24: 4" AC Opal LED Surface Mount with Dedicated CCT NLOS-R42L: 4" SURF Round LED Surface Mount NLOS-S42L: 4" SURF Square LED Surface Mount