Remodel housing for use in insulated ceilings can be in direct contact with insulation. Airtight construction provides energy savings by reducing the flow of air through the ceiling. Input Voltage: 120-277V Wattage: 12W Dimming: Phase (Triac or ELV) or 0-10V Ceiling Thickness: 0.25in to 0.625in. Compatible Trims: NIO-4RC, NIO-4RD, NIO-4RG, NIO-4RNB, NIO-4RNDC, NIO-4RPH, NIO-4RPHA, NIO-4RSL, NIO-4RSLA, NIO-4SC, NIO-4SD, NIO-4SDSQ, NIO-4SG, NIO-4SNB, NIO-4SNDC, NIO-4SNDSQ Listing: cULus Listed for Damp Locations (Wet locations when used with compatible trim)