When we walk around at night, we see all kinds of signs, a significant part of which are channel letters.
Do you know exactly how many types of channel letters there are?
The types of channel letters are as follows:
- Front Lit
- Back/Halo Lit
- Front and Back/Halo Lit(Dual-Lit)
- Trimless Back/Halo Lit
- Trimless Front Lit
- Side Lit
- Front and Side Lit
- Bevelled Edge
- Marquée
- Faux Neon
Next, I will introduce them one by one.
Front Lit
Front lit letters, also called face lit letters, are the channel letters with illumination directed towards the front of the sign, the light shines through the letter face, as shown in the figure below:
Back/Halo Lit
Back lit letters, also called halo lit letters, are channel letters where the illumination is directed towards the back, creating a halo effect around the letters, with the light visible only around the edges, as shown in the figure below:
Front and Back/Halo Lit(Dual-Lit)
Front and back/halo lit letters, also called dual-lit letters, it combines both front and reverse lighting, Illuminates the letter face as well as creates a halo effect around the edges, offering a more dynamic lighting effect, as shown in the figure below:
Trimless Back/Halo Lit
Trimless back/halo lit letters are structurally similar to regular halo lit letters. They are created by placing a transparent acrylic base plate under the trimless letter, making the halo effect around the letter more pronounced. The image below shows a trimless metal halo lit letter, where a transparent acrylic base plate is placed underneath it:
Trimless Front Lit
Trimless front-lit letters emit light in the opposite direction to trimless back/halo-lit letters; they emit light from the surface through a high-transmittance, edge-free light-emitting panel, as shown in the image below:
Side Lit
Side lit letters, also called edge lit letters, are channel letters where the lettering is illuminated from the sides, but not from the front. Generally, the front of side-lit letters is made of opaque materials such as black acrylic, stainless steel, brass, gold texture, or colored sheets, while the sides are made of acrylic. The light is projected through the return of the letters, as shown in the image below:
Front and Side Lit
Front and side lit letters are channel letters that emit light from both the front and sides. Their front is a transparent or semi-transparent panel with an internal LED light source, allowing light to pass through the front panel while a small amount of light also shines through the narrow edges (returns) or side structures, creating a “front-lit + side-lit” effect, as shown in the image below:
Bevelled Edge
Beveled edge letters generally refer to letters with beveled edges, meaning the edges of the letters are cut at a small bevel instead of straight right angles. These letters visually create a “beveled edge,” and when light shines on them, it forms a bright or shadow line, making them appear more three-dimensional and refined. They are commonly found in metal or acrylic 3D letters, storefront signs, and directional signs, as shown in the image below:
Marquée
Marquee letters, also known as bulb letters, are decorative illuminated letters with bulbs arranged in an outer contour, giving them a retro stage feel, as shown in the image below:
Faux Neon
Faux neon is a type of lettering that mimics the effect of neon lights. It looks like a traditional neon tube, but typically uses safer and more durable LEDs or acrylic structures to achieve the luminous effect, as shown in the image below:
Which Type of Channel Letters is Best?
There is no best, only the most suitable. The most common and widely used are front lit letters, but different channel letters are suitable for different scenarios. We should choose based on the scenario and usage requirements.
Below is a summary table of different channel letters to help you make your selection:
| Type | One-line Description | Lighting Direction | Common Structure / Materials | Visual Effect |
|---|---|---|---|---|
| Front Lit | Channel letters with illumination directed toward the front, shining through the letter face. | Front lighting. | Metal returns + acrylic face + LED modules. | Bright front face with strong visibility. |
| Back/Halo Lit | Channel letters with illumination directed toward the back, creating a halo effect around the letters. | Rear lighting. | Metal letter body + LED modules + installation gap from the wall. | Soft glow around the letter edges. |
| Front and Back/Halo Lit | Dual-lit channel letters with both front lighting and rear halo lighting. | Front + rear lighting. | Metal body + acrylic face + LED modules. | More dynamic and layered lighting effect. |
| Trimless Back/Halo Lit | A trimless halo-lit letter built on a seamless structure, with a clear acrylic base added underneath to enhance the halo effect. | Rear lighting. | Trimless letter structure + transparent acrylic base + LED modules. | Cleaner edges and more pronounced halo glow. |
| Trimless Front Lit | A trimless front-lit letter with no visible trim, using a high-transparency face panel for front illumination. | Front lighting. | Trimless illuminated face panel + LED modules + base housing. | Clean, modern, and seamless appearance. |
| Side Lit | Letters that are lit mainly from the sides, while the front face remains non-illuminated. | Side lighting. | Black acrylic or metal face + translucent side returns + LED modules. | Subtle front face with glowing side edges. |
| Front and Side Lit | Channel letters that illuminate both the front and the sides. | Front + side lighting. | Transparent or translucent face panel + LED modules + translucent returns. | Stronger depth and richer lighting layers. |
| Bevelled Edge | Letters with a slanted cut edge, creating a beveled surface on the letter profile. | Not necessarily illuminated, but can be lit. | Metal or acrylic dimensional letters. | Sharper outline and a more refined look. |
| Marquée | Marquee letters, also called bulb letters, with exposed bulbs arranged around the outer contour. | Point-source bulb lighting. | Letter shell + bulb holes + light bulbs. | Retro, theatrical, and decorative appearance. |
| Faux Neon | A neon-style letter made to mimic traditional neon tubing, usually with LED or acrylic construction. | Linear lighting. | LED neon strip + acrylic base. | Bright, colorful, and neon-like. |
FAQ
How to Choose the Right Channel Letter Material?
Generally, first determine the type of channel letters you need, and then select the materials based on the structure.
For example, with front-lit channel letters, first select face materials, then face overlays (if you choose not to apply face overlays, you can skip this step), then select the materials for returns and backs, as well as internal components such as LED modules, HEYCO bushing, nutsert, and power wire.
How Are Channel Letters Fabricated?
Taking commonly used front-lit channel letters as an example, their creation generally involves the following process:
- Material Cutting: CNC routing for acrylic faces and Laser Cutting for metal returns/backs.
- Letter Bending: Automated precision bending of returns to match the letter stroke.
- Welding & Assembly: Joining returns and backs with welding, riveting, or other structural fastening methods.
- Painting & Finishing: Interior White Reflective Coating and exterior custom brand color finishing.
- LED & Component Integration: Strategic LED layout to eliminate Hot Spots, plus installation of Bushings, Nutserts, and a 24–48 Hour Burn-in Test.
- Face Assembly: Installation of the Acrylic Face and Trimcap with industrial-grade sealing and fastening methods.
- Mounting Prep: Preparation of Raceways, mounting hardware(e.g., Threaded Rods), and a 1:1 Paper Pattern for on-site installation.
How Are Channel Letters Installed?
Generally speaking, channel letters can be installed in the following 5 ways:
- Studs
- Studs with Spacers
- Double-sided Tape
- Raceway/Wireway
- Mounted with Backer
For installation details, please refer to:
Front-Lit Channel Letters: Structure, Materials, and Installation Guide
How Do I Install Channel Letters to Ensure Code Compliance?
Every country and city has strict regulations regarding the installation of channel letters. Non-compliant installations are subject to administrative penalties and may be required to be removed or retrofit.
For example, in California, to implement illuminated signage projects, three major standards must be met simultaneously: product certification, on-site installation, and local regulations.
For details on how to achieve compliance, please refer to:
California & Los Angeles County LED Channel Letter Installation Compliance Guide (2026 Edition)
Take Away
Choosing the right type of channel letters depends entirely on your specific brand identity, installation environment, and visual goals. When planning your signage, do not assume that one style fits all. For instance, while a standard Front-Lit sign is highly effective for maximum daytime and nighttime visibility on a busy street, a high-end boutique or a professional indoor reception may benefit more from the sophisticated, soft glow of a Halo-Lit or Side-Lit design to create a premium atmosphere.
Therefore, for each project, we advise clients to evaluate their target audience, architectural backdrop, and desired visual depth before placing an order.
At FT Signage, we specialize in every technical detail. Whether your project requires high-visibility Front Lit letters, modern Trimless structures, retro Marquée bulb signs, or vibrant Faux Neon, we are here to manufacture products that perfectly match your design and aesthetic requirements.
Feel free to contact us to discuss your specific project needs.
