RECESSED OPTION: 2 3/8" wide recessed aluminum slot; snap-in LED boards and cover; trimless version available powder coated white, trim version available in gray, white or black. Light leak-free gasket endcaps. Custom edges for gap-free true trimless installation in sheet rock ceilings 5/16" – 1". Also suitable for installation in grid or acoustic ceilings. CCEA Chicago Plenum rated option available. IC rated, damp rated. CEILING / WALL / PENDANT OPTION: 2 3/8" wide x 3" high fixture made of extruded aluminum profile with solid aluminum endcaps, powder coated gray, white or black. High performance opal cover for uniform illumination and an optical efficiency of up to η=74%. High efficiency LEDs with 80% lumen maintenance (L 91) long life 50,000 hour. Color temperature consistency to a 3-step MacAdam ellipse in 30K, 35K or 40K, CRI &gt; 80. 120 / 277V input voltage with various dim options.