Channel letters are 3-dimensional letters and are custom made of metal and plastic. Channel letters are commonly illuminated making them visible by day and night. The illumination usually comes from the inside of the letter which allows the light to shine through the plastic sign face. When illumination comes from the back of the letters it is referred to as a “reverse channel letter” or “halo-lit”. By using a combination of these styles you can create elaborate effects to satisfy even the most demanding design requirements. Channel letters also offer the versatility to be made in almost any letter style, height and color. Full color logos and photos can also be incorporated into a channel letter set. The combinations are virtually limitless. And, since channel letters are commonly illuminated with LED lighting, they are energy efficient.