300W Solar Panel Kit Complete 12V Polycrystalline USB Power Portable Outdoor Rechargeable Solar Cell Solar Generator for HomeFeature:1. Easy maintenance.2. Light weight and high efficiency3. Easy to install and easy to install.4. Wide range of applications (outdoor, mountain, grassland and other power generation, charging, portable emergency charging)Specification:Power under normal conditions:20w/HWaterproof Rate: IP65Name: 600W Solar PanelSize: 33.4*20.3*1.6cmTolerance: +/-5%SLA Battery Voltage: 12VType of Solar Cell: PolycrystallineOpen Circuit Voltage(Voc): 12VMaximum Ystem Voltage: 12VTemperate Coefficient of Isc: (010+/- 0.01 ) %/CTemperate Coefficient of Voc: - (0.38 +/-0.01 ) %/CTemperate Coefficient of Power Voc: -0.47%/CTemperature Range: -40 ℃to +80