... brightness Competitive Price LED sign Specification: · Item No.: L-1825 Specially Wood grain looking· thickness: 1.8cm thick with a 2.5 ... cm wide black edge· Size: A1,A2,A3,A4, Any size· Material : Aluminium frame , Acrylic LGP , LED strips ... : Widely use in store, Bus station, airport , hotel or restaurant ,super market Inside use .