1. Crystal Led Light Boxes 2. CE/UL/Rohs approved 3 ... 4. 500,000hrs life span Product name: Led Light Boxes, Crystal Light Box Place for usage: supermarkets, shopping mall, stores, ... changing images3. Led backlit or edge lighting panel with super bright leds as light sources4. The Led Light Boxes ... 210*297mm, and customer size is also available.6. Super thin and ultra light weight, easy to carry, hangs ...