1pc Solar Portable Charging Panel Outdoor Waterproof Solar USB Charger Is Suitable For Outdoor Travel And Camping, Mobile Power, Mobile Phone Charging Bank, Flashlight, Fan Power Mode: Solar Powered O more→perating Voltage: ≤36V Battery Properties: Without Battery Connector Type: USB Connector Polarity: Male To Male Charger Features: Travel Charging Adapter Feature: Travel Output Power: 0-5W Attention The solar panel battery charger can effectively convert solar energy into electricity.But weather conditions can have a big impact on production. This solar panels cann't store the power, these can only produce DC electricity working current 0~0.4A. So it can't charge smart phone, like iPhone 6,