Technical Specifications:

Panel Configuration: 4 x 12.5 Watt Panels (50 Watts Total)

Maximum Output Power: 50W

Output Power Tolerance: ±3%

Operating Voltage(Vmp): 18V

Current (Imp):2.8A

Open Circuit Voltage(Voc): 21.3V

Short-circuit Current(Isc): 3.03A

Cell Efficiency: 22%

Operating Temperature: -104 F to 167 F

Unfolded Dimensions: 52 x 11 x .2 inches (Length x Width x Height)

Folded Dimensions: 12 x 11 x .2 inches (Length x Width x Height)

Weight :2.5 lbs