Designed for commercial and utility-scale applications, the Q CELLS Standard 420W delivers 420W of maximum power output with an impressive 20.54% module efficiency. The optimized 20.54% efficiency rating makes this module a reliable and cost-effective choice for large-scale solar deployments. Backed by a comprehensive 25-year warranty, the Standard 420W is built for decades of reliable energy production. Measuring 1855 x 1026 x 35 mm and weighing 21.1kg, the Standard 420W is designed for efficient handling and installation.