1/4 Scan Constant Current Programmable LED Psaaenger Displays With Remote Control

1/4 Scan Constant Current Programmable LED Psaaenger Displays With Remote Control Specifications: Passenger Information Display System (PIDS) In the train station, metro station, bus station and other populated areas, passenger information display signs are of essential importance to providing information service to facilitate passenger flow efficiently. LED traffic display is a good terminal display for passenger information system due to its low cost and excellent