Module efficiency up to 21.1 % Shingled PERC cell technology Corrosion-resistant aluminium frame with excellent mechanical load bearing capacity for snow loads (up to 5400 Pa) and wind/suction loads (up to 2400 Pa) Additional output of up to 5 Wp due to positive output toler ance 3.2 mm anti-reflective glass for high solar yields High operational reliability: 2 bypass diode bridges for dependable operation Tested for resistance to salt spray and ammonia. Conse quently suitable for use in coastal regions and areas with intensive agricultural operations. Certified to IEC 61215, IEC 61730, IEC 61701 and IEC 62716 to guarantee compliance with international qual ity standards