Feature: 1. Built‑in industrial microchip, with good storage function, large‑screen LCD display, can clearly indicate the status and data, adjustable charge and discharge parameters. 2. The internal over‑current/short‑circuit protection, open‑circuit protection, and reverse connection protection are all self‑recovery, lossless controllers, dual MOS reverse current protection, and low heat generation. 3. The built‑in maximum power tracking algorithm can significantly improve the energy utilization efficiency of the photovoltaic system, which is about 15%‑20% higher than the traditional PWM charging efficiency. 4. It has a current‑limiting charging mode. When the power of the battery panel is too large and the charging current is greater than the rated current, the controller automatically reduces the charging efficiency and makes it work at the rated charging current. 5. Double-peak or multi-peak tracking technology, when the battery panel is shaded or part of the battery panel is damaged, multiple peaks will appear, and the controller can still accurately track the maximum power. Specification: Condition: 100% Brand New Item Type: Solar Charge Controller Material: ABS+ROHS Color: As shown in the picture Size: Approx. 13.4x6.8x3.4cm / 5.3x2.7x1.3in Weight: Approx.160g~165g/5.6oz~5.8oz . 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.