Every time when the stadium or watching sports on TV, we see surrounding advertising. But did you know that? it is LED products enable viewers to watch the most competitive football games to clearly see ad. In fact, LED products do! but this LED in the application of the product is not used for entertainment, but for the audience's attention to advertising. Video wall hundreds of photo-this is just one example of LED application products. Today, hidden in a wide range of products and applications of LED products, sometimes we will pay attention to them, but in many cases, we never thought they would use in those products and applications. In fact, every day we met LED products multiple times, but does not notice them, since many people only think of LED products in the home as a light source, without realizing that they have are used in various ways in other ways.