Upgrade your power management with the DC-DC Buck Converter Step Down Constant Voltage Current Programmable Power Supply Module. Designed for precision, safety, and convenience, this module is perfect for electronics enthusiasts, engineers, and DIY projects. Easy Output Control Effortlessly open or close the output at any time by simply pressing the ON/OFF button on any interface. This user-friendly feature allows you to manage your power supply with just a touch, ensuring quick and reliable operation. Button Lock Function for Safety Prevent accidental changes and ensure stable operation with the button lock feature. By pressing and holding the coding potentiometer for 2 seconds, all buttons are locked, protecting your settings from unintended adjustments. Repeat the process to unlock, with a clear lock/unlock icon displayed for your peace of mind. Ten Programmable Data Groups (M0-M9) Store and manage up to ten different voltage and current settings for various applications. The M0 group serves as the default boot data group, and when you extract a new data group, it automatically updates and saves to M0 for instant access. Quick Data Group Extraction Access your most-used settings in seconds. Instantly extract shortcut storage data groups M1 or M2, or select any specific data group you need, making your workflow faster and more efficient. Comprehensive Safety Protection Operate with confidence thanks to built-in input polarity protection and output short-circuit protection. These safety features safeguard both your devices and the power supply module, ensuring reliable and secure performance. Key Features Programmable constant voltage and current output Simple ON/OFF output control on any interface Button lock/unlock function to prevent accidental operation Ten data groups (M0-M9) for easy storage and retrieval of settings Fast extraction of shortcut data groups M1 and M2 Input polarity and output short-circuit protection for enhanced safety Perfect for laboratory use, DIY electronics, and professional applications, this DC-DC buck converter power supply module delivers precision, flexibility, and peace of mind for all your power needs.