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The technology is straightforward in concept but requires precision in execution. Aluminum letters with solid faces mount to walls with LED strips inside pointing backward instead of forward. Light hits the wall and bounces back around the letter edges, creating that outline effect.
Three Core Components: Aluminum shells (typically 0.080-0.100 inch thick), solid face material that blocks forward light, and LED strips positioned at specific angles to direct light toward the wall.
Wall condition significantly affects results. Light-colored, smooth walls reflect light efficiently. Dark or textured walls absorb too much light. This is why many installations include backer panels - separate painted boards mounted behind letters to ensure consistent light reflection. Without good wall surfaces, the effect doesn't work properly.
Standoff Distance
The gap between letter and wall, typically 2-4 inches. Shorter creates tighter halos, longer creates wider halos but needs more LEDs. Most use 2.5-3 inches as a practical compromise.
Letter Spacing
Backlit needs more space between letters than frontlit. Too close and halos merge, killing readability. Add 1.5-2 inches more than you'd use for frontlit.
Face Finish
Brushed metal reflects daylight better, making letters visible during the day. Painted/matte finishes absorb daylight and can disappear against buildings. Tenants with brushed aluminum faces often receive more daytime attention.
LED Color Selection
Warm white (2700-3200K) for welcoming/traditional looks. Cool white (5000-6500K) for modern/crisp aesthetics. Choose based on your brand and building colors.
