Overview
Illuminated channel letters are one of the most effective signage solutions for brand visibility. However, selecting the correct lighting type—front-lit or back-lit (halo-lit)—requires technical evaluation of viewing distance, luminance levels, installation surface, and brand positioning.
This case study outlines the technical differences and application scenarios based on Capital Arts Cambodia’s real project experience.
1. Front-Lit Channel Letters
Technical Description:
Front-lit channel letters use internal LED modules that emit light through a translucent acrylic face, while the return and back are typically fabricated from stainless steel or aluminum.
Technical Advantages:
High luminance output for long-distance visibility
Uniform light diffusion through precision-cut acrylic
Supports full brand color matching (Pantone/RAL)
Efficient power consumption using LED modules
Suitable for both indoor and outdoor environments
Common Specifications:
Face: 3–5 mm acrylic (laser-cut)
Body: Stainless steel / aluminum (powder-coated or hairline finish)
Lighting: High-efficiency LED modules (IP65 for outdoor use)
Recommended Applications:
Retail storefronts
Shopping malls
Restaurants & franchises
Road-facing signage
Capital Arts Front-Lit letters & Logo Work
2. Back-Lit (Halo-Lit) Channel Letters
Technical Description:
Back-lit channel letters are designed with LEDs installed behind the letters, projecting light onto the mounting surface to create a halo illumination effect.
Technical Advantages:
Controlled light spill with reduced glare
Premium architectural appearance
Enhanced depth and dimensional effect
Ideal for clean façades and interior branding walls
Common Specifications:
Face: Solid metal (no acrylic)
Body: Stainless steel / aluminum
Spacer mounting: 20–50 mm from wall for halo projection
Lighting: Warm white / cool white LED modules
Recommended Applications:
Corporate offices
Hotels & hospitality brands
High-end retail
Interior feature walls
Capital Arts Back-lit Logo and 3D letter work
| Parameter | Front-Lit | Back-Lit |
|---|---|---|
| Light Direction | Forward | Rear (halo effect) |
| Luminance | High | Medium |
| Viewing Distance | Long-range | Short to mid-range |
| Glare Control | Moderate | Excellent |
| Installation Complexity | Standard | Advanced |
| Visual Style | Bold & commercial | Elegant & architectural |
Engineering Recommendation
Selection should be based on:
Mounting surface material & color
Ambient lighting conditions
Required brightness level
Brand positioning (commercial vs premium)
Capital Arts conducts a site assessment and lighting calculation before fabrication to ensure optimal performance and durability.
Capital Arts Technical Capability
Fully in-house design, fabrication, wiring, and installation
Custom stainless steel & aluminum fabrication
Professional LED selection for longevity and energy efficiency
Compliance with indoor & outdoor installation standards
