50A PWM solar charge controller with 12V/24V auto work. Max input voltage 48V, Max input power 1560W. Dual USB output 5V/2.5A, large screen LCD display with power-off memory. Built-in full protection and 3-stage charging to extend battery life. OPEN, AGM, GEL Lead acid battery holder. Do not use other batteries (including lithium batteries, nickel-metal hydride batteries, etc.). Three-load working mode to meet your different needs, good heat dissipation design. Easy to set up and connect. Features: System Voltage: 12V/24V Auto Charge Current: 50A Max Input Voltage: 24V (12V system); 48V (24V system) Max Input Power: 650W (12V system); 1300W (24V system) Dual USB Output: 5V/2.5A Compatible Batteries: OPEN, AGM, GEL Lead Acid Batteries Full Protection: Short-Circuit, Open-Circuit, Reverse, Over-Load Large-Screen LCD Display with Power-Off Memory Temperature Display Three Load Working Modes Easy Setting and Connection Specifications: Self-Consume: