solar panel,solar system,PV system,grid system panel with different specification ! solar panel,solar system,PV system,grid system panel with different specification !170W SOALA PANEL Specifications Tolerance +/- 3% Cell Monocrystalline ... : diameter of 28mm with impact speed of 86km/h Temperature and Coefficients NOCT 48C +-2C Voltage temperature coefficient 0.09Current temperature ...