From airports to bus shelters, casinos to theaters, and streets to roadways, backlit display lightboxes highlight advertising and wayfinding messages in public spaces. For example, there are approximately 4,250 malls in the U.S. According to the 2009 Directory of Major Malls, each mall includes a range of two to 50 lightboxes used for advertising and directional signage. Approximately 85,000 large lightboxes are bringing light to retail messages in malls across America on a daily basis.