Leder Optoelectronic Technology Limited is a leading LED technology developer, manufacturer and global supplier of state-of-the-art LED modular video displays. *Leder supplies series of LED displays for outdoor and indoor use. *Leder has got the certificates for ISO9001 and CE, ROHS., which ensure our products are always of perfect quality. *Leder deeply understand the importance of innovation and is always put great effort and resource into R&D. As a result, we have been awarded two patents: Patent for the control circuit of full color LED display module, Patent for framework of LED display. *Leder proudly has a team incorporating sales and technical talents in LED lighting field. *Leder have done many LED display projects in different countries, Spain, Australia, America, Russia and all. ****************************************************************************************************** To be a respectable enterprise, we highly focus on after sale Service. 1. Warranty Period: 2 years, follow-up service throughout the lifetime of the display 2. During the warranty period, we will repair the equipment units free of charge, if the deficiency caused by product quality problems. We take no responsibility if the failure caused by disobeying operation regulation of the clients or under the irrevocable exterior factors stipulated by our country. 3. After our customer purchases our LED display, we will also provide our customer with the service of software upgrading free of charge. 4. We can give the quick response for unit repairing. 5. Online Technology Support: Our experts are always ready to serve our customers, who can obtain prompt technical support conveniently 6. In order to avoid possible trouble during the operation of the display, free spare modules are provided for customers. Furthermore, customers can send the modules to us for repair.