Queen Solar is the top brand providing the most efficient, highest ROI and safest solar solution to residential and commercial solar Installations. Queen Solar has a perfect and mature quality assurance system to ensure your safety and after-sales service. From our standard warranty coverage to flexible ways to extend, our warranty program is designed to take the uncertainty out of your installation. If you have any other questions, please submit your information on the feedback interface below, and we will respond to you as soon as possible.