This multipurpose intelligent solar charge and discharge controller is designed for reliable management of small to medium photovoltaic systems. It features a fixed LCD display with a clear, userfriendly interface and fully adjustable control parameters so you can tailor charging and load behavior to your application. Key benefits Automatic system recognition: Detects 12V or 24V systems automatically for simple installation. Battery compatibility: Supports leadacid and gel battery types with automatic detection and appropriate charging control. Flexible capacity options: Available in 10A, 20A, 30A, 40A, 50A and 60A models to match system size and load. Improved charging management: 4stage PWM (pulse width modulation) charge management increases charging efficiency and extends battery life through controlled stages. Clear monitoring and configuration: Large LCD display lets you view system status and adjust parameters without special tools. Builtin protection: Short circuit, open circuit, reverse polarity and overload protections enhance safety and reliability. Core features Builtin industrial microcontroller for stable, consistent control and parameter management. Fixed LCD display showing battery voltage, charging status, load status and configurable settings. Fourstage PWM charge algorithm (bulk, absorption, float, equalize or programmable stages) for optimized battery charging. Comprehensive protections: short circuit protection, open circuit protection, reverse connection protection and overload protection. Modelspecific maximum solar panel input limits to match battery voltage and controller current rating. Model specifications and maximum solar panel input 10A model: 12V battery: max solar input 25V, up to 120W 24V battery: max solar input 50V, up to 240W 20A model: 12V battery: max solar input 25V, up to 240W 24V battery: max solar input 50V, up to 480W 30A model: 12V battery: max solar input 25V, up to 360W 24V battery: max solar input 50V, up to 720W 40A model: 12V battery: max solar input 25V, up to 480W 24V battery: max solar input 50V, up to 960W 50A model: 12V battery: max solar input 25V, up to 600W 24V battery: max solar input 50V, up to 1200W 60A model: 12V battery: max solar input 25V, up to 720W 24V battery: max solar input 50V, up to 1440W Typical applications Home photovoltaic systems and home lighting: Manage solar charging and loads for offgrid lighting, small appliance support and battery maintenance. Recreational vehicles and boats: Reliable battery charging and load control for camping, mobile living and marine installations. Remote cabins and small offgrid sites: Maintain battery health and protect system components while powering lights, pumps and electronics. Performance and compatibility notes Designed to work with 12V or 24V battery banks and solar arrays within the stated maximum input limits per model. Charge parameters and load settings are fully configurable via the LCD interface to match battery type and usage patterns. Electrical protections reduce the risk of damage from common wiring or load faults. Ordering guidance Choose the controller amperage based on the maximum solar array current and expected continuous load. Verify the solar panel open circuit voltage and power fall within the listed maximum input for your chosen battery voltage. This controller provides straightforward, configurable control and protection for a range of small to medium solar systems, combining automatic voltage and battery type recognition with adjustable charging profiles and comprehensive safety features.