This is QDH scrolling system, we are a professional light box scrolling system manufacturer in China. We can provide one-stop solution for advertising light box.We started studying and manufacturing light box scrolling system in year 2008, now we are the largest scrolling system provider in China.We provides over 40,000 sets of light box scrolling system to our customers globally.We make almost all the parts of the scrolling system by ourselves, like DC brushless motor, control board, keyboard, aluminum tubes, plastic parts all by ourselves designs and production.We also source light box and accessories from our partner companies, such as light box, light box door keys, hinges, hydraulic rod, light box glass tapes, poster clips, solar systems, LED display etc.We want to be a full solution provider for advertising light box, if you are trying to buy advertising light box or make light box, we will be your best partner to supply components for your light box.Contact with us for more details about QDH systems!