1)With the aluminum frame and light guide panel for showed graphics          
2)The graphics can be showed on one sided or two sides          
3)Minimum thickness:22mm slimness        
4)Light source:LED        
5)Frame color available:Silver white,Black and any multicolor        
6)Certificate:CE/UL/Rohs        
7)Power supply:DC12V  
8)Size accept
A3:420x290x22mm(Frame size)/390x250mm(Image size)
A2:590x290x22mm(Frame size)/560x250mm(Image size)
A1:810x400x22mm(Frame size)/780x360mm(Image size)
A0:1180x470x22mm(Frame size)/1150x430mm(Image size)
B0:1350x590x22mm(Frame size)/1320x550mm(Image size)