LED magnetic light box 2.size:A1,A2,A3,A4,A5 3.light panel 4.poster can be changed 5.OEM service 1. LED magnetic ... light box 2.poster can be changed easily.3.transparent front ... -panel, "U" shape holder, Light panel, black back panel4.insert poster, easier change5.Led lifespan 80,000 hours6.Low power ...