30A/20A/10A Solar Charge Controller with LCD Display and Dual USB PWM Solar Charger Battery Regulator 30Amp This regulator is an easy-to-use, multifunctional solar charge and discharge controller. It features a fixed LCD screen with a user-friendly interface, allowing flexible adjustment of various control parameters to meet your diverse application requirements. This is a brand-new solar controller perfectly suited for your solar system needs, including home lighting systems. It automatically recognizes 12V and 24V lead-acid and gel batteries. Available in 10A, 20A, and 30A models. 10A: If your battery is 12V, the maximum solar panel input is 25V 120W. If your battery is 24V, the maximum solar panel input is 50V 240W. 20A: If your battery is 12V, the maximum solar panel input is 25V 240W. If your battery is 24V, the maximum solar panel input is 50V 480W. 30A: If your battery is 12V, the maximum solar panel input is 25V 360W. If your battery is 24V, the maximum solar panel input is 50V 720W. Features: 1. Built-in industrial microcontroller. 2. Large LCD screen with all parameters adjustable. 3. Full 4-stage PWM charge management. 4. Built-in short-circuit protection, open-circuit protection, reverse protection, and overload protection. 5. Dual MOSFET reverse current protection, low heat generation.