
Durable Illuminated Letters for Large-Format Outdoor Signage
Manufactured with acrylic faces, metal returns, and durable trim cap systems, our trim cap channel letters are designed for reliable outdoor performance, consistent illumination, and large-format signage applications.
Available in multiple structural configurations to support different service access, material, size, and installation requirements.
Custom Sizes
Outdoor Applications
Multiple Trim Systems
LED Illumination
DURABLE FRONT-LIT
CHANNEL LETTER SYSTEMS
Custom Trim Cap Channel Letters
Trim Cap Channel Letter Systems
Choose from different trim cap structures based on letter size, maintenance access, material requirements, and project application.

YJ-M000A
Rear-Service Stainless Steel Trim Cap Letters
Outdoor Trim Cap Channel Letters with a stainless steel trim cap, acrylic face and ACP back panel. Designed for rear access, allowing maintenance and component replacement from the back of the letter.
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Stainless Steel Trim Cap
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ACP Back Panel
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Rear-Service Access
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Suitable for Large Outdoor Signage


YJ-M000B
Dual Stainless Steel Trim Cap Letters
Reinforced outdoor channel letters with dual stainless steel trim caps and a stainless steel or aluminum back panel. Designed for front servicing and recommended for large-format signs over 1 meter.
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Dual Stainless Steel Trim Cap
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Stainless Steel / Aluminum Back Panel
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Front-Service Access
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Recommended for 1m+ Signage


YJ-M000C
Aluminum-Plastic Trim Cap Letters
Outdoor channel letters featuring an aluminum-plastic trim edge, acrylic face and stainless steel or aluminum back panel. A practical solution for large-format illuminated signage with flexible trim color options.
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Aluminum-Plastic Trim Cap
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Stainless Steel / Aluminum Back Panel
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Custom Trim Color Options
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Suitable for Large Outdoor Signage

TECHNICAL SPECIFICATIONS & CUSTOMIZATION
Built for large-format illuminated signage with flexible structural, material, and lighting configurations. Specifications can be adjusted according to letter size, installation conditions, service access, and project requirements.
Technical Specifications
Letter Depth
Approx. 60–120 mm, depending on letter size and structural requirements.
Minimum Stroke Width
Approx. 15 mm, subject to font, illumination method, and fabrication feasibility.
Face Material
Acrylic face for front illumination.
Return Material
Stainless steel or aluminum, depending on the selected system.
Trim Cap Material
Stainless steel or aluminum-plastic trim options available.
Back Panel
ACP, stainless steel, or aluminum depending on model and service structure.
Lighting Method
Front-lit LED illumination.
LED System
LED modules selected according to letter size, depth, and brightness requirements.
Input Voltage
12V or 24V DC, depending on LED configuration.
Application
Suitable for outdoor commercial signage and large-format illuminated letters.
Service Access
Rear service, front service, or project-dependent access depending on system design.
Customization Options
Custom Sizes
Letter dimensions can be manufactured according to approved drawings and project requirements.
Trim Cap Options
Choose from stainless steel or aluminum-plastic trim systems depending on appearance, structure, and budget.
Return Materials
Stainless steel and aluminum options are available for different structural and finish requirements.
Face Colors
Acrylic face colors can be customized according to brand identity and lighting requirements.
Trim Colors
Trim cap color can be matched to the letter body, face, or project-specific color standard.
LED Colors & White CCT
Available in white color temperatures and selected LED colors according to project requirements.
Surface Finishes
Painted, brushed, polished, or other customized finishes can be applied depending on material selection.
Service Structure
Front-service or rear-service configurations can be selected according to installation and maintenance conditions.
Mounting Configuration
Mounting details can be customized based on wall type, installation method, letter size, and project conditions.
Materials & Finishes
Choose durable materials and customized finishes for trim cap channel letters designed for indoor and outdoor signage projects.
Materials & Finishes
Different materials. More possibilities.

Acrylic Face
Acrylic is used for the illuminated face, providing smooth front lighting and reliable performance for indoor and outdoor applications.
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Front-Lit Acrylic Face
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Customizable Colors
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Suitable for Indoor & Outdoor Use
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Works with LED Strip or LED Modules

Stainless Steel
Stainless steel can be used for trim caps, returns, and structural components, offering durability and a premium metallic appearance.
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Durable Metal Construction
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Suitable for Outdoor Applications
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Multiple Surface Finishes
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Available for Trim Caps and Returns

Aluminum
Aluminum can be used for letter returns and back panels, helping reduce overall weight while maintaining practical structural performance.
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Lightweight Construction
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Suitable for Returns
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Available for Back Panels
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Custom Surface Finishes

Aluminum-Plastic Trim
Aluminum-plastic edge strips provide a practical trim cap option for securing the acrylic face, especially for larger channel letter projects.
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Secure Acrylic Face Retention
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Suitable for Large-Format Letters
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Customizable Appearance
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Practical Trim Cap Structure
Surface Finish Options
Choose from a range of metal finishes and decorative treatments to match different architectural styles, brand identities, and project requirements.

Mirror Polished Stainless Steel
A highly reflective stainless steel finish that creates a clean, premium appearance for modern commercial signage.

Satin Brushed Stainless Steel
A refined directional brushed finish with a soft metallic texture, suitable for modern architectural and commercial applications.

Painted Stainless Steel
Custom painted stainless steel with flexible color options to match brand colors and project-specific design requirements.

Rose Gold Titanium Finish
A decorative rose-gold titanium finish that adds a warm, elegant metallic appearance for premium retail and hospitality signage.

Rusted / Aged Finish
A distinctive weathered finish designed for industrial, vintage, and architectural signage requiring a more textured visual character.

Titanium Gold Finish
A bright metallic gold finish that provides a premium decorative appearance for high-end retail, hotel, and commercial signage.

Brushed Brass Finish
A warm brushed brass surface with a refined metallic texture, suitable for premium retail, hospitality, and architectural signage applications.

Heat Transfer Printed Finish
A decorative surface treatment that allows customized patterns, textures, and visual effects for project-specific signage designs.
Custom Colors & Decorative Finishes
Trim caps, returns, and acrylic faces can be customized according to project requirements and approved color references.

Available customization includes:
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Acrylic Face Colors
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Painted Metal Colors
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Titanium Finishes
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Bronze Finishes
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Brushed Metal Surfaces
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Mirror Metal Surfaces
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Project-Specific Color Matching
LED Lighting Options
Flexible LED Colors & Light Source
Choose LED colors and white color temperatures to match your brand identity, application environment, and project requirements.
LED Color Options


White LED: 2700K–8000K
Red LED

Yellow LED

Green LED

Orange LED

Blue LED
LED Light Source

LED Modules
LED modules are arranged according to letter size and stroke width to provide bright, even, and reliable front illumination.
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Uniform illumination
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Multiple LED colors & CCTs
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Waterproof options available
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Suitable for indoor & outdoor projects
Applications of Trim Cap Channel Letters
Trim cap channel letters are widely used for large-format commercial signage where strong visibility, durable construction, and reliable front-lit performance are required.
Shopping Malls
Hotels & Restaurants
Entertainment Centers
Auto Service Centers
Office Buildings
Public Buildings
Commercial Complexes
Retail Stores
See how these Trim Cap Channel Letter systems are applied in selected YIJIAO projects below.
Trim Cap Channel Letters Projects
Explore completed trim cap channel letter projects featuring different structural systems, materials, colors, and lighting configurations. Each project is manufactured according to approved drawings and specific installation requirements.
YJ-M000A
Rear-Service Stainless Steel Trim Cap
Rear-service construction with stainless steel trim and acrylic face, designed for durable large-format outdoor signage.
Typical Applications
Building Facades · Retail Stores · Restaurants · Large Outdoor Signage
Dual Stainless Steel Trim Cap
Reinforced front-service system for larger illuminated letters and high-visibility commercial applications.
YJ-M000B
Typical Applications
Large Commercial Buildings · Shopping Centers · High-Visibility Brand Signage · Large-Format Letters
YJ-M000C
Flexible trim solution with customizable colors and finishes for commercial and large-format illuminated signage.
Aluminum-Plastic Trim Cap
Typical Applications
Retail Signage · Commercial Facades · Custom Logo Signs · Large Illuminated Letters
Installation Options
Choose the appropriate mounting method based on the wall material, letter structure, and installation requirements.
Wall / Surface Mounting
01
Direct Wall Mount
Acrylic letters are fixed directly to the wall using threaded rods for a clean and secure installation.
.webp)
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Suitable for concrete walls
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Strong and stable fixing
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Clean installation appearance
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Spacer Mount
Spacer tubes maintain a consistent distance between the acrylic letters and the wall.
.webp)
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Controlled stand-off distance
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Stable mounting structure
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Suitable for concrete walls
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Panel Mount
Threaded rods and nuts secure the letters through metal or composite panels.
.webp)
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Suitable for panel surfaces
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Secure double-side fixing
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Reliable mounting structure
Raceway Mounting Options
01
Top-Mounted Raceway
Raceway positioned above the letters for a clean lower profile.

02
Center-Mounted Raceway
Centered raceway provides balanced support and simple installation.

03
Bottom-Mounted Raceway
Bottom support creates a stable base and clean top appearance.

04
Suspended Raceway
Designed for hanging or overhead sign installations.

05
Top & Bottom-Mounted Raceway
Dual raceways improve stability for long or large letter sets.

06
Fully Enclosed Raceway
Integrated enclosure conceals wiring and support components.

Raceway configurations can be customized according to letter size, facade conditions, and installation requirements.
Installation Guide
Two common installation methods for Trim Cap Channel Letters. Final mounting details depend on the letter structure and installation surface.
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Method 1 — Stud Mounting

01
Install threaded studs on the back of the letter.

02
Drill mounting holes slightly larger than the stud diameter.

03
Apply silicone to the back surface and studs.

04
Insert the letter into the prepared mounting holes.
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Method 2 — Backer / Panel Mounting

01
Remove the backer from the letter shell.

02
Use the template to drill mounting holes and install anchors.

03
Secure the backer to the mounting surface with screws.

04
Reattach the letter shell and secure it to the backer.
From Approved Drawings to Finished Illuminated Letters
Every illuminated letter project follows a controlled production workflow, from engineering preparation and material processing to LED assembly, quality inspection and packing.
Drawing & Production
Drawings & Production Files
Confirm dimensions, materials, lighting and production details before fabrication.
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01
Surface Finishing
Painting & Decorative Finishes
Apply approved colors, coatings and surface treatments for the required finish.
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04
Material Processing
Laser Cutting & CNC Engraving
Cut metal, acrylic and other components according to approved production files.
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02
LED Assembly & Testing
LED Installation & Lighting Test
Install LED modules and wiring, then test brightness, stability and light consistency.
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05
Metal Fabrication
Bending, Welding & Polishing
Form, weld and finish metal components for accurate letter structure and shape.
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03
Final Inspection & Packing
QC, Template Verification & Packing
Inspect quality, verify dimensions, and prepare protective packaging for delivery.
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Why Choose YIJIAO
More than manufacturing — we help reduce project risk before your signage reaches the installation site.
From drawing review and structural planning to lighting tests, quality inspection, and packing, every step is focused on helping your project arrive ready for installation.

01
Built for Large-Format Projects
Trim cap structures are configured according to letter size, stroke width, mounting conditions, and service access to improve stability on larger signage projects.
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Made to Approved Specifications
Dimensions, materials, colors, finishes, lighting, and structural details are produced according to confirmed drawings and project requirements.
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Lighting Checked Before Shipment
LED layout, wiring, brightness, and light consistency are tested before packing to help reduce dark spots, uneven illumination, and on-site rework.
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Materials Matched to the Application
Acrylic, stainless steel, aluminum, trim systems, and finishes are selected according to structural needs, installation environment, and desired appearance.
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Installation Made Easier
Mounting templates, production drawings, wiring information, and installation guidance can be prepared to help installers work more efficiently on site.
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Final QC Before Packing
Dimensions, structure, finish, appearance, illumination, and packaging are checked before shipment to reduce avoidable issues after delivery.
Custom Trim Cap Channel Letters Collection
At Yijiao, we specialize in fully customizable Trim Cap Channel Letters. Our Trim Cap Channel Letters are precisely cut, available in various materials, and have different finish option, ensuring a stunning and durable finish.




























What Our Clients Say
better than expected. supplier was very responsive to requests and followed up with on time delivery and amazing quality.

Sarah LaBounty,Canada
Alibaba
Received a customized product, built at high quality exactly to specification! Delivered on time and without stress. l will purchase custom advertising light from Kunshan Yiiao again when l need it. A+

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Alibaba
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Alibaba
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