1Charging Funcition: The 220V Ac outlet is perfect for charging laptops, fans, game consoles, kindle, TVs, Dvd players, Christmas lights, breast pumps. The fast 5V USB charging port is perfect for fast charging smartphones and other electronic devices. 2Working Voltage: Power converter offers 900W of continuous power, 3000W of surge power to charge multiple electronic devices. The compact and durable aluminum body offers advanced protection and easier cooling. 3Intelligent Lcd Screen: Intelligent voltage detection chip, always detects the voltage changes of the battery and the inverter, and always protects the safety of electricity consumption. 4Built in Cooling Fan: The car power inverter has a built in intelligent cooling fan with low noise. Fast heat dissipation, stable and precise output voltage. 58 Protection Functions: With various protections such as overcharge protection, overcurrent protection, overvoltage protection, undercurrent protection, short circuit protection, undervoltage protection, overheat protection, and overload protection. 6Good solution for Emergencies: You can use a 12V/24V battery system to connect with the car power inverter to power your devices at home or outdoors for emergencies, outdoor events, power outages.