Features: Efficient voltages reduction performances ：The 3A voltages reduction module has stable current output, ensuring that the equipment operates efficiently under different load conditions. Widely compatible design supports multiple input voltages ranges, easily adapting to various direct current power supply needs. Durability ABS: it provides excellent heat resistance and impacts resistance, extending the product's service life. Compact and convenient structure: The compact design makes it easy to integrate into devices in small spaces, and can be quickly installed without the need for additional tools [Security Protections Mechanism] Built in overcurrent and overheating protections functions ensuring automatic power-off protections of the device in case of abnormal situations. Specifications: Component: ABS plastic, good heat resistance and insulation properties. Size about：1.75x1.2cm/0.69x0.47in Supports 3A current output, wide input voltages, suitable for a variety of direct current power requirements. Input : 5V-30V Output Option：3.3V/4.2V/ 5V/ 12V Widely used in electronic projects, embedded systems development, power management and other fields. Package Includes: 5PCS 3A power supply board note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution