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300W 10A DC-DC Buck Converter is a high-power step-down voltage regulator designed for applications requiring stable and efficient voltage conversion. It operates with an input voltage range of 6V to 40V and provides an adjustable output voltage from 1.2V to 36V, supporting a maximum current of 10A. The module features a high-efficiency synchronous rectification circuit, ensuring minimal energy loss and heat generation. It includes an onboard heat sink for improved thermal management, allowing continuous operation under heavy loads. The adjustable potentiometer enables precise voltage control, making it suitable for LED drivers, motor controllers, and industrial power supplies. The module is equipped with protection features such as overcurrent, overheat, and short-circuit safeguards, ensuring reliable performance in demanding environments. It is widely used in high-power electronic applications, solar energy systems, and automotive power distribution. The rugged and durable design makes it ideal for long-term use in industrial and commercial settings.