1.Long life span 2. indoor true color 3. video, graphic, animation 4 advertising usage Application: 1. Stock ... exchange, Commercial institutions;2. Government, School, Bank, Hospital;3. Shopping mall, supermarket4. Air port, Bus station, Railway station, ... 5. Entertainment: Bar, KTV, Cinema, Restaurant;6. Advertising and Security use etc. specification SMD P6mm indoor full color led screen-3 ...