This adjustable DC power supply module is designed for various applications, including solar charging, constant voltage and current, and voltage regulation. Its compact and lightweight design makes it easy to carry and install, and its simple operation makes it suitable for various scenarios and devices. Features -Color: black -Material: plastic, iron, electronic components -Size:7.80X5.00X4.20cm/3.07X1.97X1.65in -Input voltage: DC5. -3 -Output voltage: DC0.6V-3 -Output current: 0-4.0A -Operating frequency: 180KHZ - The product ensures reliable performance by providing a constant voltage and current output, allowing for stable and consistent power supply. - With its efficient solar charging technology, the product enables fast charging of devices, making it convenient for users who require quick power replenishment. - Ensure safety and reliability during operation, safeguarding against potential risks such as overvoltage, overcurrent, and short circuits. - The versatile design of the product allows for its use in various application, catering to different needs and requirements of users. - Features a simple operation interface, making it easy to use in different scenarios without the need for complex setups or configurations. Package list: 1 x Module