Today, LED sign usage is wide and varied. An LED sign is used in applications for channel letter illumination, moving message boards, and window displays. The imagination of entrepreneurs, electrical engineers and architectural designers are developing new uses at a rapid pace. Point of purchase advertising that uses state of the art LED sign displays, like the plasma screen and the deli special, will allow retailers to reach their best customers when they’re ready to buy, will allow them to do so at a fraction of the cost of other media and with almost 100 percent penetration. Who can argue with results like that?