3S Import and Export Shijiazhuang Co., Ltd. is a China-based manufacturer, supplier, and factory that specializes in producing solar controller. Our solar controllers are designed to regulate the voltage and current from solar panels to batteries, ensuring efficient and safe charging for your solar power systems. They come in a range of sizes and capacities, suitable for various types of solar panels and batteries. Our solar controllers are built with high-quality materials and advanced technology, providing reliable and long-lasting performance. We use top-grade components, such as microprocessors, MOSFET transistors, and LCD displays, to ensure accurate monitoring and control of your solar power systems. Our solar controllers also feature various protection functions, including overcharging, over-discharging, short circuit, reverse polarity, and overheating, to ensure the safety of your solar systems. 3S Import and Export Shijiazhuang Co., Ltd. is committed to providing cost-effective and eco-friendly solar solutions for our customers. Contact us today to learn more about our solar controllers and how we can help you achieve your solar energy goals.