light box billboard display card customized led electronic light box outdoor led luminous characters customized wall-mounted flash signboard

single-sided flash light box(单面闪光灯箱) double-sided flash light box(双面闪光灯箱)

30*60(30*60) 30*80(30*80) 30*100(30*100) 30*120(30*120) 40*60(40*60) 40*80(40*80) 40*100(40*100) 40*120(40*120) 50*80(50*80) 50*100(50*100) 50*120(50*120) 60*80(60*80) 60*100(60*100) 60*120(60*120) 60*150(60*150) 70*100(70*100) 70*120(70*120) 80*80(80*80) 80*100(80*100) 30*50(30*50)