4" Iolite LED downlights require a dedicated Iolite new construction or remodel housing. Die-cast adjustable reflectors optimize visual cut-off and adjustable to aim the light source in desired direction. Adjustability: 38° (new construction) or 25° (remodel)0 Compatible Housing: NHIOICD-48. NHIOICDCP-48, NHRIOIC-48 Lumens / Wattage: 1000lm / 14W Color Temperature: Comfort Dim (3100K-2000K) Color Rendering Index: 90 CRI Beam Spread: Three field changeable optics included Finish: White Reflector / White Flange Listing: cULus listed for damp locations Accessories: NIO-AS, NIO-HC, NIO-FMMR-4S