156*156 Poly Solar Cells Solar Cell, Multicrystalline Dimension: 156mm * 156mm Thickness: 200um+30um, 180um+30um Front: (-) 1, 9+0, 1mm busbar(silver) Silicon nitride antireflection coating Back: (+)4.3mm*156mm continuous soldering pads (silver/aluminum) Back surface field(aluminum) Productivity: 6 MW/month. Cell Characteristics: 1. High efficiency solar cells with isotropy etched surface 2. Low reverse current, high shunting resistance and dependability 3. Proper handling from incoming inspection through production 4.100% checked for reverse current and visual appearance 5. Small light-induced degradation 6. Calibration by Fraunhofer ISE.