Recessed LED downlights that are offered with an asymmetric light distribution enables uniform illumination on vertical surfaces. The illumination of vertical surfaces can impact the perception of a visual environment more profoundly than any other type of lighting. It can make a room appear more open and spacious, flatten the wall’s visual appearance, and draw attention to a vertical feature. An even blanket or “wash” of light on vertical surfaces can minimize texture on the surface and gloss over imperfections in wall surfaces. Uniform vertical illumination also eliminates shadows on vertical displays such as large paintings, wall hangings, bookcases and shelving, or cabinet fronts. Vertical surface lighting that delivers this effect is referred to as “wall washing.”