1.LED display,LED screen manufacturer 2 standard :ISO9001 3.High brightness,vivid image 4.1 year warranty Suitable for,Bus, Taxi, other vehicle, Bar, Shop, Bus Station, Building, Advertising Company, School, Hospital, Hotel, Government, Factory, Super market etc.led customer display: 1.long life according to experiments 2.High efficiency 3.ISO;9000 standard super quality! customer led display