Size: 210mm × 210mm (diameter 295 ± 0.25mm)

Thickness (cell): 170 ± 20 μm

Front(-): Silicon dioxide + blue nitride composite anti-reflection film (PID free);Three-Segment design,9 roots bus bar and 120-180 roots fingers; The bus bar width is 0.08±0.03mm with three-Segment design, and the bus bar has two forks head (size (1.5±0.1)mm × (1.2±0.1) mm) ; the size of 4 padsat the junction of bus bar and the fingers is (1.5±0.15)mm × (1.0±0.15)mm.

Back(+):AlOX and SiNX dual layer rear contact; the rear electrode is composed of 9 roots rear compound bus bar and 150-250 roots rear Al fingers,9 sections,1.8±0.2 mm silver anode.