Tips: The efficiency of energy transformation from solar to electric energy is really low, even in a perfect laboratory condition, the transformation efficiency just 30%. We suggest you recharge it via wall charger at the beginning to make the power battery fully activated. Press the power button and hold on 3 seconds then you will see the LED light on. Specifications: Battery type: Li-polymer rechargeable battery cell Capacity: 12000mAh Input: DC 5V/1A Output1 : DC 5V/2.1A Output2 : DC 5V/1A Size: 150 x 77 x 14mm Package: 1 x 12000mAh Solar Power Bank 1 x Connectors(4 in 1)
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