Hot Sale Slim LED Advertising Light Box

About this item : 1.The thickness of the Light Box is only 2.8 cm,so we call it ultra-thin Advertising light box . 2.4 sides all can be opened with  aluminium frame ,and the border width just is 4 cm. 3.Light box size:A1,A2,A4,A4,other sizes can be customized. 4.The characteristics :  super slim, high bright, beautiful, energy-saving, enviromental protection,long life span, easy to install, easy to change poster. About material； Aluminum frame,Acrylic,LED lights and adaptor 1)...