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Battery Type:Li-Polymer BatteryInput Interface:ACInput Interface:USBIs LED Lamp Illumination:YesOutput Interface:USB/MICRO USBSupports Solar Energy:NoPlace of Origin:CN GUACapacity:4001-5000(mAh)Brand Name:TPFDimension:7*3cmWeight:100GSocket Type:USBFeatures:LED LIGHT, charging for phone, warterproofProduct name:Led Light Waterproof Power BanksColor:BlackMaterial:ABS+PCCertification:CE ROHS FCCBattery:Polymer Lithium Ion BatteryWarranty:12 MonthsCapacity:4000mAhCharging time:1-3 HoursLife Cycle:900 TimesSize:7*3cm