Features: The Step Down Converter Module efficiently converts 48V input to stable 5V USB output with efficiency, suitable for USB charging and industrial applications. Featuring industrial temperature resistance ( 40°C-85°C), and low power consumption (6mA), this module ensures reliable performances in harsh environment. Perfect for electronics enthusiasts, automotive technicians, and solar systems builders needing 5V power for devices like smartphones and portable gadgets. Safely charge USB devices in car, or off etups using panel by stepping down 48V battery power to precise 5V output with protective. Suitable for most USB electronics when pair with proper adapters, this converter supports fast charging while maintaining electricity stability across fluctuating input sources. Specifications: Component: Plastic Size: Approx.48x23mm/1.88x0.9inch Package Includes: 1Pc Step Down Converter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.