Designed for commercial and utility-scale applications, the Suntech Premium 420W delivers 420W of maximum power output with an impressive 22.32% module efficiency. With its exceptional 22.32% efficiency rating, this panel maximizes power density for space-constrained installations. An industry-leading 30-year performance warranty underscores the long-term reliability and durability of Suntech modules. Measuring 1855 x 1026 x 35 mm and weighing 22.2kg, the Premium 420W is designed for efficient handling and installation.