1) Optimum Operating Voltage: 17V
2) Optimum Operating Current: 2.94A
3) Open Circuit Voltage: 20.6V
4) Short Circuit Current: 3.63A
5) Maximum Power: 50W
6) Maximum System Voltage: 715V
7) Operating Temperature: -40-+85
8) Dimension: 644*665*40mm
9) Number of cells and connects: 4*9PCS
10) Weight: 6kg