Channel letters come in variety of styles, most are illuminated with Neon or LED, they really stand out at night. They are usually front lit, back lit, front and back lit or non iluminated.
Channel letters are made of Aluminum available in solid welded construction or rivet letters
Some of the exapmles are :
Standard Channels Letters with Acrylic Face comes in Variety of colors with different mounting style.
Reverse Channels Letters are commonly used when a prestigious image is of up most importance. This individual mounted letters provide an elegant effect during evening hours while offering a stylish vibrant image during daylight hours.
Open Face Channels Letters does not have face and the neon is exposed, this type of letters usually have colorful background with the colorful neon and it really gives an elegant image.