Feature:1. Industrial‑grade main control chip and large‑screen LCD display, with adjustable charge and discharge parameters.2. With a complete 3stage PWM charging management and dual MOS antibackflow circuit with ultralow heat generation.3. Built‑in over‑current/short‑circuit protection, open‑circuit protection, and reverse connection protection, all of which are self‑healing and do not damage the controller.4. The built‑in industrial microcontroller can automatically manage the work of solar panels and batteries in the solar system.5. This product is widely suitable for family, industry, business, etc., and is very practical.Specification:Item Type: Solar Panel ControllerProduct Material: PVCProduct Specifications: 12V/24V 30ARated Charging Current: 30ARated Discharge Current: 10AUSB Output: 5V/3ASize: Approx. 148.57mm / 5.8in139.89mm / 5.5in55.71mm / 2.2in77.99mm / 3.1in.Package List:1 x Solar Panel Controller1 x User Manual