Select a sign category to view the description and photograph. Architechural Signs A Frame Awnings Banner Center Mounted Pole Sign Channel Letters Digital Printing Illuminated Box Signs Individual Letters Interior Signage Magnetic Signs Menu Boards Post & Panel Signs and Billboards Trade Show Booths Traffic Signs Vehicle Graphics Window Lettering Wooden Signs Channel Letters Channel Letters are shaped, manufactured aluminum, which houses neon tubing. They are the fastest growing illuminated signage. They can be mounted on a raceway or each letter can be mounted individually.