1、Solar charge controller, built‑in industrial microchip, with memory function and good storage function. 2、Built‑in maximum power tracking algorithm significantly improves the energy efficiency of the photovoltaic system. 3、Equipped with LCD screen, adjustable charge and discharge parameters, with complete 3‑stage PWM charge management. 4、Using advanced digital power technology, the circuit energy conversion efficiency is as high as 98%. 5、Double peak or multi‑peak tracking technology, when the solar panel is shaded or part of the solar panel is damaged, the maximum power can still be accurately tracked. 6、The combination of multiple tracking algorithms can accurately track to the proper working point within 1 second, MPPT tracking efficiency can up to 99.9%. 7、With current-limiting charging mode, when panel power is too large and the charging current is greater than the rated current, the controller will automatically reduce charging efficiency. 8、Internal over‑current/short‑circuit protection, open‑circuit protection and reverse connection protection are all self‑recovery, not damage controller, dual MOS reverse current protection, low heat generation. 1 x Controller1 x Manual Condition: 100% Brand NewItem Type: Solar Charge ControllerMaterial: ABS+ROHSWeight: Approx. 292g-345g / 10.3oz- 12.2ozProduct Size: Approx. 17x 9.4x 3.6cm / 6.7x 3.7x 1.4in