4" Iolite LED downlights require a dedicated Iolite new construction or remodel housing. Fixed pinhole focuses the beam spread through small opening. Compatible Housing: NHIOICD-48. NHIOICDCP-48, NHRIOIC-48 Lumens / Wattage: 1000lm / 14W Color Temperature: 5000K Color Rendering Index: 90 CRI Beam Spread: Three field changeable optics included Finish: Black Pinhole / Black Flange Listing: cULus listed for wet locations Accessories: NIO-AS, NIO-HC, NIO-FMMR-4R