ZC-SJ Single sides Led Crystal Light Box. Single-side, Brighter and Thinner. Uses the optics organic glass, it looks like a glittering and translucent crystal without frame.Configuration: front transparent panel +photo film + optical light panel + reflective film +white back board. Normally total thickness 10 mm, specified request considered. Openable style frame, easy to change picture. Edge lit with SMD led lighting. Sizes A4, A3,A2,A1 and custom sizes. Easy to assemble and maintain They can be wall mounted or placed on a table in either vertical or horizontal formats for use in show rooms restaurants,bars.