Tray Ceiling Indirect Lighting . It may be prudent to accent this reverse tray ceiling design by affixing a light fixture to the part of the ceiling that is dropped. With the help of your spouse or friend, attach drywall to the whole ceiling. Ceiling Indirect Lighting Room Pictures & All About Home Design Furniture from teresayabarsterling.blogspot.com These are awesome for the money. Function wise, coffered ceilings are said to improve the room’s acoustics while tray ceilings are functional in hiding the home’s vent systems. Square holes at each recessed light with the outer edge even with the 2x2.