1、ADJUSTABLE POWER SUPPLY: This adjustable buck converter module supports a wide input voltage range of 4 to 38V, allowing for a flexible output voltage range of 1.25 to 30V, making it suitable for various applications. 2、POWERFUL AND EFFICIENT: With high power capacity and efficiency, this buck converter module delivers stable and reliable power with low ripple, ensuring optimal performance of your electronic devices. 3、CONVENIENT POWER INDICATOR: Equipped with power indicator light, this module provides clear and intuitive status indication, allowing for easy monitoring of its operation. 4、MULTI FEATURES: With current limiting, voltage stabilization, and voltage reduction functions, this module ensures the safety and stability of your power supply system. 5、MULTI PURPOSE: This versatile module can also serve as a high power LED constant current driver module and a USB interface lithium battery charging module.