4" Trimless Iolite downlights have no exposed trim flange and do not extend beyond the ceiling plane. Iolite Trimless requires a Trimless Mud Ring and New Construction housing. Regressed cone reflector optimizes visual cut-off and adjust up to 35° Required Trimless Mud Plate: NIO-TLMR-4RA Compatible Housing: NHIOICD-48. NHIOICDCP-48 Lumens / Wattage: 800lm / 14W Color Temperature: 5000K Color Rendering Index: 90 CRI Beam Spread: Three field changeable optics included Finish: Bronze Adjustable / Bronze Reflector Listing: cULus listed for damp locations Accessories: NIO-AS, NIO-HC, NIO-TLSUCTION