This converter is solid and sturdy, which can withstand use. Features the PCB and electronic component material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This Step down Power Converter will make the repair and fix easier and smoother. Features -Color:Assorted Color -Material:PCB, electronic component -Size:3.30X2.10X0.80cm/1.30X0.83X0.31in Input voltage range: 6V-32V Output voltage: 5V by default, automatically adjusted between 3-12V after triggering fast charge Output power: up to 24W (5V3.4A, 12V2A, etc.) Conversion efficiency: 90%-97% -This dc step-down module can convert a 12v/24v power supply to a USB 3.0 fast charging output, providing fast charging for your devices. -Equipped with a single usb port, this phone charging board can deliver quick charging to your devices. -This converter is widely applicable for various power supply modifications, making it a versatile tool for your charging needs. -With long-term use, this DC-DC voltage regulator can operate without damage, ensuring reliable and consistent performance. -Featuring a simple design, this Power Supply Regulator is easy to use and can be integrated into your charging setup with ease. Package list: 4 x adapters