1. Dual Usb Output Buck Module, Model XR-M224, Which Has Wide Voltage Input DC-9-36V 2. Synchronous Rectification. The Efficiency Reaches 96%, Supports Mobile Phone Charging, And The Charging Efficiency Is Comparable To The old Mobile Phone Charger. 3. Two Power Input Terminals Are More Widely Applicable. They USE 5.08 Terminals And DC5.0x2.1 Power Sockets Respectively. The Adaptable Power Supply Is DC9-36V (Note: During Use, The Two Power Input Terminals Cannot Be Connected To Two At The Same Time. Power Supply) 4. The Power Indicator Light Lights Up After Power Is Supplied. 5. Dual USB Interfaces Can Connect Two Loads At The Same Time, Such As Charging Two Mobile Phones, The Voltage Is DC5V And The Maximum Output Current Is 3Ax2 Product Name:USB Output Buck Module Model:XR-M224 Input Voltage:DC9-36V Output Voltage:5V Maximum Current:Maximum 3Ax2 Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:Green Material:PCB Package Contents: 1 * Voltage Stabilizing Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.