Solar panel charge controller with LCD digital display and USB port. Available in 10A, 20A, and 30A versions. The 20A model measures 13.5 x 7 x 3 cm, making it a compact choice for small solar systems. Key benefits Reliable charge regulation: intelligent regulator monitors and controls charging current to prevent overcharging and maintain stable battery charging. Easy monitoring: clear LCD digital display shows charging status and system data for quick checks and troubleshooting. Direct device charging: built in USB port lets you charge small devices without additional adapters. Flexible sizing: choose 10A, 20A, or 30A to match panel and battery capacity for efficient performance. Space saving design: compact footprint fits tight installation spaces and portable setups. What it does and why you need it Manages power from the solar panel to the battery so charging is controlled and predictable. Provides a visible, simple interface to confirm system operation and adjust settings as needed. Adds convenience with a USB output for phones, lights, or small electronics when battery power is available. Performance and build Intelligent digital control adjusts charging according to system conditions for stable operation. Compact, lightweight housing suitable for small systems and portable installations. Available current ratings let you select the correct controller for panels and batteries used in small off grid setups. Compatibility and sizing Available in three current ratings: 10A, 20A, and 30A to suit different panel and battery sizes. 20A model physical size: 13.5 x 7 x 3 cm. Designed for use with typical small solar panels and DC battery systems in off grid and backup applications. Typical use scenarios Cabin lighting and small appliance support: control a small roof mounted PV array and charge a battery that powers LED lighting and low power equipment. Recreational vehicles and boats: manage charging from a rooftop solar panel and provide a USB port for phone or device charging while underway or at anchor. Remote or temporary installations: portable solar kits for camping, outdoor events, or construction site monitoring where compact, reliable charge control and a USB output are useful. What sets this controller apart Combination of an LCD digital display and a USB port in a compact package. Multiple current options allow matching controller capacity to system size. Simple, clear behavior focused on dependable charge regulation and convenient device charging. Package notes Choose the correct current rating for your system when ordering. Verify physical space and mounting requirements for the 20A model size 13.5 x 7 x 3 cm. This controller is suitable for small solar installations that need straightforward charge regulation, visible status information, and a built in USB charging option.