Whether you need to charge your devices on the go or regulate voltage and current for your projects, this power supply module is the perfect solution. Its charging technology ensures fast and efficient charging, while its constant voltage and current function ensures stable output. 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 - This module is designed to be versatile and reliable, making it an ideal choice for powering a wide range of projects and application. - Its adjustable output voltage and high-efficiency design make it a supply solution that is sure to meet your needs. - This module is easy to integrate into your projects, a convenient and practical choice for those who are looking for a powerful power supply solution. - Light weight, easy to use, the voltage power module can bring you good using feeling. - The output of this power module is stable, providing constant voltage and current. Package list: 1 x Module