√ Two years quality warranty with lifelong led display maintenance.
√ Free guarantee repair (including labor and material): free for repair service in quality warranty period and reasonable charge for spare parts and maintaining service after the quality warranty period. Never exempt our responsibilities on product owned defects, modules, power supply, who set led display all repair.
√ Spare Parts and free CAD drawing: necessary 2% spare parts are provided together with products to customers.
√ Free Technical Training: integrative and normative technology training is available for free to technical personnel from customer, to ensure trainees to be skilled in regular operation of hardware and software of the products, and be able to estimate and solve small problems, synchronizatrion assitance for led screen.
 
√ Customer Investigation: our after-sales team will telephone or e-mail user every month in warranty period to follow up the working condition of the products, and to discover problem and solve the problem instantly.
√ Software Upgrade: lifelong maintenance of control system, incessant improvement on the system functions and unending software upgrades, now we used Linsn or Nova control system
√ Site Instruction Service of installation is available.