4A Constant Voltage and Current Step-Up Down Power Supply Module

The 4A Constant Voltage and Current Step-Up Down Power Supply Module is a versatile automatic DC-DC buck/boost converter designed for stable and efficient power regulation. It supports an input voltage range of 5V to 30V and provides an adjustable output from 0.5V to 30V, with a maximum output current of 4A. This module can automatically step up (boost) or step down (buck) voltage, ensuring a consistent output regardless of input fluctuations.

Featuring both constant voltage (CV) and constant current (CC) modes, it is ideal for applications such as battery charging, LED driving, DIY power supply projects, and electronic testing. The onboard digital display allows easy monitoring of voltage and current levels, while the high-efficiency