low voltage led display board advertising screen,led display sign IP65 waterproof Energy saving light-weight LED Advertising Panel China Supply,outdoor display screen, advertising screen, led display sign, advertising screen led screen display led display sign Item NoTM2050S(SMD)Pitch20mmPixel/M22,500dotsPixel/Cabinet576dotsModule Size480*480mmPixel Configuration2R1G1B Ventilation No FanWeight ...