... Item Name: 120watts Power cup inverter with usb charging portFeature:1,This product is a device that transfer DC voltage to ... ,Over load protection7,Over heat protection8,Short circuit protectionOperation instruction:1,Insert the inverter lighter plug into car cigar lighter socket, when ... : DC15-16V24V input: DC30-32VWorking temperature: -15°C-50°CWarning:1,Don't use the device when engine is off or ...