4" Iolite LED downlights require a dedicated Iolite new construction or remodel housing. Die-cast adjustable surface gimbals adjust to aim the light source in desired direction. Adjustability: 45° Compatible Housing: NHIOICD-48. NHIOICDCP-48, NHRIOIC-48 Lumens / Wattage: 1000lm / 14W Color Temperature: 4000K Color Rendering Index: 90 CRI Beam Spread: Three field changeable optics included Finish: Black Listing: cULus listed for damp locations Accessories: NIO-AS, NIO-HC, NIO-FMMR-4S