led sign bus 1.dot matrix LED display 2.send with edit software free 3.use with GPS or GSM, update message content via gps bus with edit software indoor LED panel bus/bus led panel/station name panelSpecification LED specificationdigital super shine red Ø5,Ø3word super shine orange Ø5,Ø3pixel diameter 5MM,3MMhorizontal angel135°best view distance2M~8Mbrightnesssingle LED brightness:≥1500mcd(by ...