Features Direct photovoltaic operation: This product can use photovoltaic panels to directly drive the solar controller, enabling efficient solarpowered operation without extra intermediate circuitry. Simple wiring with DC5521: The DC5521 interface connects directly to the controller, reducing wiring complexity and simplifying installation. Faster charging for mobile devices: Designed to charge mobile phones and power banks more quickly when connected through the controller. Key attributes Function: Direct PV input drives the solar controller for streamlined solar charging Interface: DC5521 port directly connected to the controller Wiring: Minimal and straightforward connections to reduce setup time Performance: Supports faster charging for mobile devices connected via the controller Use scenarios Offgrid camping or outdoor trips: Pair with a portable solar panel and connect via the DC5521 interface to the controller to charge phones and power banks efficiently while away from mains power. Remote cabins or sheds: Integrate with an existing solar setup to simplify wiring and improve charging speed for small USB devices. Emergency backup charging: Use with a solar panel to ensure quick charging of essential devices during power outages without complex wiring.