Next Level Q.ANTUM DUO Technology Based on Q.ANTUM DUO Technology Upgraded with Cell Design & Layout Optimization Upgraded Q.ANTUM DUO TechnologyBased on Q.ANTUM DUO Technology, which has been further developed to deliver greater power and efficiency. A reliable investmentInclusive 25-year product warranty and 25-year linear performance warranty. More suitable size for residential installationFeaturing a lighter, and robust frame Q.MAXX BLK G5+ allows multiple clamp and bolt options, and up to 13 mounting configurations Quality ManagementAll Qcells’ products, engineered in Germany, pass the most comprehensive quality programme in the industry Documentation - Marketing DatasheetWarranty Installation manual