Feature: 1. LCD screen, the parameter data of the solar panel controller is clearly visible on the large screen, djustable charge and discharge parameters. 2. Dual reverse current protection. Two‑way MOS tube anti‑backflow circuit, high‑power charging mode, low heat generation. 3. Built‑in short circuit protection, open circuit protection, reverse connection protection, overload protection. 4. Three‑stage charging mode, charging 12V/24V battery, ultra‑wide charge and discharge adjustable. 5. It is suitable for home, industry, business, etc. Easy to install and use. Specification: Item Type: Solar Charge Controller Material: PVC Color: As shown in the picture Product Size: Approx. 13.3x6.8x3cm / 5.2x2.7x1.2in Weight: Approx. 145g / 5.1oz Rated Voltage: 12V 24V automatic (12V is suitable for 18V solar panels, 24V is suitable for 36V solar panels) Rated Current: 10A Charging Mode: 3 stages Function: Charge 12V/24V battery, ultra-wide charge and discharge adjustable Self-Consumption: <10MA Overcharge Protection: 14.4V/28.8V Floating Voltage: 13.7V/27.4V Over Discharge Protection: 10.7V/21.4V Over Discharge Recovery: 12.6V/25.2V . Package List: 1 x Solar Charge Controller1 x Instruction Manual Note: 1. Please allow 1‑2in 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.3. Without electric power storage function.