1. The USB interface supports Huawei super fast charging and is compatible with the QC3.0 dual flash charging protocol. 2. Upgraded and widened gold-plated shrapnel, which is full of toughness and does not shake when plugged and unplugged. 3. Intelligent dual-core, multiple protection. 4. Output: USB: 5V 3A, 9V 2A, 12V 1.5A (18W max) 5. Input: DC12-24V 6. Material: aluminum alloy+PC+ABS