Channel Letter

Typical channel letters have five main components:

• The face, often made of acrylic (or sometimes metal), is the front surface of the letter, which can be illuminated or left opaque.
• The returns (sides) are vertical strips of aluminum that form the depth or “channel” of each letter.
• The back is a sheet of aluminum that encloses the back of the letter and supports the internal components.
• Lighting is typically provided by LED modules (though neon is sometimes used) inside the channel to illuminate the face or create a halo effect.
• The trim cap is a lip (usually plastic or metal) that joins the acrylic face to the returns, creating a finished edge.