... equipment such as light box,showcase,sign panel,display rack,booth and so on. We ... metro advertising light box,metro light box , led metro light boxes,intdoor metro sign,and ... oxygen/chemical/discolour resistance,7 years long span Screen(Sticker): light-proof sticker,2 years span outdoor ... led,over 50000h life span,both brightness of them are over 1500 lumen on the advertising/sign screen Front panel ...