Features: 1Imported Intelligent Control Chips: The front and rear dual control chips and driver chips adopt intelligent control chips which have better anti interference ability more stable and durable performance and more stable and accurate parameters. 2Imported IGBT MOS Tube: The 300W pure sine wave power inverter adopts the IGBT MOS tube which has guaranteed quality stronger performance and stronger impact resistance. 3Heat Dissipation: In terms of heat dissipation independent aluminum alloy radiator has better heat dissipation effect so as to achieve higher conversion efficiency. 4Transformer Coil: The transformer coil is wound with pure copper tape with higher conversion efficiency and is tested and controlled according to strict quality requirements. 5USB Charging: The USB charging function of the device has a built in fast charging protocol chip to improve the charging speed and also has a builtin output overvoltage protection circuit to protect our charging device. 6Cooling Fan: The cooling fan adopts double ball highspeed fan with faster cooling speed and longer service life. Specification: Item Type:300WPureSineWavePowerInverterMaterial: AluminiumColor: As Pictures ShownWeight: Approx. 1270g / 2.8lbOutput Frequency: 50Hz 60HzOutput Oower: 300WProduct Size: Approx. 22.7x11.6x7cm / 8.9x4.6x2.8in Package List: 1 x Inverter1 x Manual2 x Connecting Clip