solar panel: Peak power supplied by photocell: 0.77W; Operating voltage: 5.5V (max); Charging current: 140mA (max); Battery capacity: 1800mAh; Output voltage: 5.6V; Output current: 600mA (max); Charging time:10-14hrs (Irradiance: 100mW/CM2) 2-3hrs(wall outlet 5v/500mA); Parameter: Dimensions:120*72*15.5mm; Case : Fire proof plastic (ABS); Input interface: DC interface; Output interface: USB interface; Small LED display: charge or discharge LED light: big LED; Control switch: LED/OFF/ON

The advancing control circuit is researched and developed by IC and CPU imported from America as well as solar energy. It makes the secondary switching efficiency (which lays the electricity in the lithium battery) achieves upon 95%. Comparing with the similar products universally that the secondary switching rate are no more than 60% in the market,this item can be charged more quickly