SPECIFICATIONS: Power: 220W Open-Circuit Voltage: 21.8V Short-Circuit Current: 12.6A Work Current: 11.9A Work Voltage: 18.4V Efficiency: 22-23% Solar Panel Material: Monocrystalline Silicon Connector: MC4 Folding Life: 10000 times Cable Length: 2m MC4 Cable Number of Panels: 4 Product Dimensions Open: 183.5 x 82 x 2.5 cm Product Dimensions Folded: 82 x 50 x 3.2 cm CABLE ACCESSORIES: 1x 2m MC4 Multi-Adapter Cable 1: XT60 Port 2: Anderson Port 3: DC7909 Port 4: DC5525 Port EXTRA ADAPTERS: DC5525 to Dc8020 DC5525 to DC5521 WHAT’S IN THE BOX: Gizzu 220W Universal Rugged Solar Panel – Black x1 2m MC4 Multi-Adapter Cable (DC5525, Anderson 30A, XT60, DC7909) x1 DC5525 to DC8020 x1 DC5525 to DC5521 x1 User Manual x1