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Meteor Shines a Light on Wallwash Lighting Design Practices

May 1, 2023

Wallwash lighting can help illuminate unique wall textures, artworks, and center pieces. Discover how to optimize your lighting design with this in-depth guide to creating the perfect wall wash ambiance with our REV Flex Series.

Lighting plays a significant role in setting the mood and tone of any space. One effective lighting technique to enhance the visual appeal of your interiors is wall washing.

What Is Wallwash Lighting?

Wallwash lighting is a technique employed in architectural lighting design to uniformly illuminate large vertical surfaces, emphasizing textures and artwork. This method is commonly used in galleries, offices, museums, and residential spaces to achieve even illumination.

Here are the key features of wall wash lighting:
  1. Emphasizing architectural features and artwork: Helps accentuate wall textures, architectural details, and artwork, drawing attention to these elements and enhancing their visual appeal.
  2. Creation of a spacious atmosphere: By uniformly illuminating surfaces, it fosters a sense of openness, making even small or narrow areas appear larger and more inviting.
  3. Low glare and increased visual comfort: Evenly distributes light across surfaces, reducing harsh contrasts and glare, and contributing to a more comfortable visual experience.

What Is A Wallwasher?

The wallwasher is a crucial element of wall wash lighting, in our case, it is a wall wash bezel that features a half circle shield that directs light towards the wall, in a wide beam angle to ensure soft and uniform illumination.

REV Flex 4 with Bezel Configuration

Ideal Applications For Wallwash Lighting

To achieve the best results with wallwash lighting, consider the following optimal conditions and applications:

  1. Wall Color: It is most effective on white or bright-colored walls, as these surfaces reflect more light and create a more uniform illumination.
  2. Recessed Lighting Distance: Ensure the lights are installed at an appropriate distance from the wall to produce a smooth and even lighting effect. Generally, the distance between the lights and the wall should be one-third of the ceiling height.
  3. Spacing between lights: Maintain equal spacing between each recessed light to provide consistent illumination across the surface.
An example showing the recommended installation distance between fixtures to achieve a uniformed wallwash look with the REV Flex 4 & 6 

Situations to Avoid Using Wallwash Lighting

While wallwash lighting is versatile and adaptable, there are certain situations where it may not be the most suitable choice:

  1. Windows Or Mirrors: Avoid directing lighting toward windows or mirrors, as the reflection of lamps and fixtures may create visual discomfort.
  2. Dark surfaces or heavy shadows: Dark surfaces or heavy shadows reflect less light, so if you want to achieve a wallwash effect, you may need to direct more light onto these surfaces.

Wall Washing v.s. Wall Grazing

Wall washing and wall grazing are two distinct lighting techniques, each with its unique purpose and effect. While both techniques illuminate wall surfaces, they differ in their approach and the resulting visual impact. Here is a summary of the differences between wall washing and wall grazing:

CategoryWallwashingWall Grazing
Primary PurposeEnhance surface smoothnessEnhance surface textures and patterns
Lighting EffectEven, uniform illuminationEven, highlighted illumination
Shadows & AccentsMinimal shadows, smooth appearanceMinimal shadows, textured appearance
Fixture PlacementAway from wallCloser to wall
Area of FocusLarger areas, general illumination applicationsSmaller areas, focused illumination applications
Best Used onSmooth walls, bright colorsTextured walls, muted colors
Human Centric LightingProvides orientation and visual expanse in roomsConstricted space and focused view
Indoor ApplicationsPlastered Walls, Murals, Graphic WallsNatural stone, wood textures
Outdoor ApplicationsFacade lighting, defining open spacesFacade textures and material highlights
Wall grazing using Meteor’s Lance 4 outdoor wall mounted luminaire

Measuring Wallwash Lighting

When evaluating the performance and impact of Wallwash lighting, it’s important to consider these essential metrics that play a significant role in creating the desired atmosphere:

  • Uniformity: Achieve consistent light distribution across surfaces. Aim for a minimum of 1:0.5 uniformity
  • Maximum coverage: Ensure seamless illumination without patchy spots between fixtures
  • Delivered Lumens: Measure the luminaire’s output and effectiveness in various applications. Aim for a minimum of 10 average fc.

By focusing on these key metrics, you can optimize the effectiveness and aesthetics of your Wallwash lighting design.

REV Flex Series With Wallwash Bezel

The REV Flex adjustable downlights are configurable with a Wallwash bezel that can help you elevate your next wall wash project. Available in a 4 and 6-inch aperture, it offers exceptional performance as demonstrated on the DIALux simulation below, where six, REV Flex 4 luminaires with Wallwash bezel offers 8,736 lm, an average 17fc, and a 0.11 min/max uniformity in a wall measuring 12 ft. by 18 ft.

REV Flex 4
Wallwash Bezel

Total Wattage 240 W
Total Lumens 8736 lm
Average fc 17 fc
Uniformity 0.11 Min/Max

Luminaires 6
Setback 3 ft
Spacing 3 ft
Wall Size 18 ft Long, 12 ft Height

More information available here

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