Max power(¡À5%) 5w Nominal voltage 18.10V Nominal current 0.276A Open circuit voltage 22.30V Short circuit current 0.298A Maximum system voltage 1000V,600V NOCT 48¡æ¡À 2¡æ Operating Temperature -40¡æ to +85¡æ Dimension of panel 280mm*165mm*18mm Weight of panel 2.0kgs.