4" Iolite LED downlights require a dedicated Iolite new construction or remodel housing. Bullnose with a filleted aperture which allows for minimal aperture brightness while still producing the nadir footcandles. Compatible Housing: NHIOICD-48. NHIOICDCP-48, NHRIOIC-48 Lumens / Wattage: 950lm / 12W Color Temperature: 2700K Color Rendering Index: 90 CRI Beam Spread: 10° Spot (fixed) Finish: White Listing: cULus listed for wet locations Accessories: NIO-AS, NIO-HC, NIO-FMMR-4S