53in Custom Car Sign Led TV Advertising Board Light Up Signs Waterproof for Pickup Truck DC9-36V led topper and black is negative-

and black is negative-

The Flexible USB 5V LED Car Sign Features:

Frame size: L 38 x H 8

1 * Fixed metal frame

53in Custom Car Sign Led TV Advertising Board Light Up Signs Waterproof for Pickup Truck DC9-36V led topper and black is negative-Led Panel Screen Phone Programmable Led Digital Sign Scrolling Your Advertising The whole frame is made of the metal lightweight and strong protection Frame size 53 21 in (1340 540mm) Display area size 50 19 in (1280 480mm) Resolution: 96 256, it's an HD display that can scan QR on the LED screen DC9 36V, apply for car, taxi, truck, etc. DC9 36V Led Car Sign 3 meters(10 Ft) Power Cable Phone program message Selection message to display by the app