Founded in 2004, Centch Electronics (Shanghai) Co., Ltd. is a leading designer and manufacturer of energy efficient, LED edge-lit signs. Our main products include LED light boxes, rainbow LED writing boards, and all kinds of LED edge-lit advertising signs and programmable LED message displays. Centch's signs are created using the latest ultra-bright LED and edge-lighting technology, making the signs extremely bright and eye-catching. Our strong R&D ...