JoyiQi 12V/24V DC to 110V AC 300W(max 600W) Power Inverter with 5V USB Output Modified Sine Wave Inverter Convert 12V or 24V DC power from a vehicle battery to 110V AC power, Simply plug the inverter into your vehicle's DC outlet, and connect your device to the inverter's AC outlet. USB port providing 5V/2.1A for smart phone, tablet and other 5V devices fast charging. Short circuit, overload, overheat, low battery voltage, over battery voltage Protections, Full protection features and Auto-shutdown keep your appliance and car from damage of overheating. High technology, Input & Output Isolation avoid electric shock ! Built-in fuse & cooling fan. Resum working after protections. For DC12V and 24V battery input, convert automatic.