Feature:1. Support auto focus PWM tracking charging, high charging efficiency, nonstop detection during charging.2. Equipped with large-screen LCD display, adjustable charge and discharge parameters, with power-off memory function.3. Builtin overheating, overcurrent, short circuit, open circuit protection, troubleshooting, and controller automatically recovers.4. Using dualway MOS tube antibackflow circuit, highpower charging mode, safe and reliable to use.5. Dual reverse current protection, low heat generation, with short circuit protection, open circuit protection, reverse connection protection, overload protection.Specification:Item Type: Solar Charge ControllerMaterial: ABSRated Voltage: 12V 24V Automatic (12V is suitable for 18V solar panels, 24V is suitable for 36V solar panels)Rated Current: 50ADisplay: LCD ScreenSelf-Consumption: <10MAOvercharge Protection: 14.4V/28.8VCharging Recovery Voltage: 12.6V/25.2VOver Discharge Protection: 10.7V/21.4VOver Discharge Recovery: 12.6V/25.2VDual USB Output: 5V/2A (Charging mobile phone, etc.)Working temperature: -35-60Regulator Suitable Batteries: OPEN, AGM, GELWeight: Approx. 153g / 5.4ozProduct Size: Approx. 13.5x7.2x3.2cm / 5.3x2.8x1.3inHow to Use:Connect the positive and negative poles of the battery to controller, and the controller will automatically detect the battery voltage and connect the solar panel to the controller..Package List:1 x Solar Charge Controller1 x Chinese and English ManualNote:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.