Prabha Reil 12V DC 10 Watt PV Solar Panel Module, Rated power: 10W ?Voc: 21.0V ?Vop: 16.4V ?Short circuit current (Isc): 0.08A ?Working current (Iop): 0.58A ?Output Tolerance: ?3% ?Temperate coefficient of Isc: (010+/- 0.01)%/ ? ?Temperate coefficient of Voc: - (0.38 +/-0.01)%/ ? ?Temperate coefficient of power Voc: -0.47%/? ?Temperature range: -40?to +80?