1" Iolite BWF downlights can be specified for use with Iolite new construction or remodel housings. Adjustable slot aperture focuses the beam spread through 1-1/8" x 1-3/8" opening. Compatible Housing: NHIOICD-16, NHIOICDCP-16, NHRIOIC-16 Lumens / Wattage: 600lm / 10W Color Temperature: Comfort Dim (3000K-1900K) Color Rendering Index: 90 CRI Beam Spread: Three field changeable optics included Finish: Black Slot Aperture / Matte Powder White Flange Listing: cULus listed for wet locations Accessories: NIO-1AS, NIO-1HC, NIO-FMMR-1R