Dimension: 158.75mm x 158.75mm ± 0.25mm Thickness: 170µm ± 19µm Front (-): Blue Antireflective Coating (silicon nitride), Texturized Surface (Alkaline), 0.7 ± 0.1mm wide segment silver busbar Back (+): Back-Surface Field (aluminum), 1.8 ± 0.3mm wide segment soldering, pads (silver/aluminum) Efficiency: 21.8%~22.6% High CTM performance with PID and shunt resistance