Car power adapter with 300 watts.

Car power converter 12 volts to 220 volts modified sine wave high frequency inverter with 300 watt power multiple ports from Denxmen its features: equipped with a digital screen contains two three-prong electrical outlets contains two two-prong electrical outlets contains 4 USB ports contains a 12v port equipped with an on and off button specifications: power: 300 watts input voltage: 12 volts output voltage: 220 volts USB port: 5 volts, 4.1 amps maximum