LED letters are custom-made metal or plastic letters that are commonly used on the buildings of business, churches, and other organizations for exterior signage.
The outline of a letter, with metal returns, into which a neon tube is placed. The depth of the channel may vary, depending on the viewing angle. The channel letter may be openfaced, plastic-faced, or a reverse channel letter with illumination.
Three dimensional aluminum internally illuminated letters with translucent acrylic faces. The letters are typically lit using either neon tubes or LED lights. ...