Body Size: 350mm*170mm*30mm Solar panel peak power: 12W Working Voltage: 18V Output Current: 670mA Unfold Size: 550mm*350mm*10mm Fold Size: 350mm*170mm*30mm Description: 1. Photoelectric transformation rate of 17% ; 2. Long working life to use high performance solar mono-crystalline panel; 3. Charge can be obtained easily just by connecting T001 and laptop through adapter.