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: 850lm / 12W Color Temperature: 5000K Color Rendering Index: 90 CRI Beam Spread: 10° Spot (fixed) Finish: Haze Reflector / Natural Metal Flange Listing: cULus listed for damp locations Accessories: NIO-AS, NIO-HC, NIO-FMMR-4S