Solar PV Charge Controller 30A/20A/10A 12V 24V with LCD Display and Dual USB PWM Solar PV Regulator Battery Charger 30Amp This regulator is an accessible, multi-functional solar charge and discharge controller. It features a fixed LCD display with a user-friendly interface, allowing flexible parameter settings to meet diverse application requirements. This is a NEW Solar Controller, fully capable of meeting your photovoltaic system (including home lighting system) needs. It can automatically recognize 12V and 24V lead-acid, gel batteries. Available in optional 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 display, all parameters adjustable. 3. Full 4-stage PWM charge management. 4. Built-in short circuit protection, open circuit protection, reverse protection, overload protection. 5. Dual MOSFET reverse current protection, low heat generation.