This is a 4000W 12V 24V pure sine wave power inverter hybrid type which can generate 4000W of continuous power and up to 8000W of power at peak times (peak time reserve capacity is useful if more energy is required to start an appliance than for its continuous running).It has hybrid function with AC mians ,you can set battery working in priority or AC mains working in prioroty as your demand.

This is a pure sine wave type of inverter, which means that the 110 or 230V AC output harmonically follows a smooth sine wave and is almost identical to normal mains electricity. Pure sine wave output is far superior than square sine wave or modified sine wave output for running appliances. This is because:

It is suitable for a broader range of appliances (for example, appliances with electric motors can not be powered by modified sine wave inverters)

It is more efficient compared to modified sine wave inverters. 
 
This product comes with important protection and safety features, such as over-discharge, overload, overheating and short-circuit automatic shutdown.
The inverter also features a powerful USB port for faster charging of mobile phones, MP3 players and others mobile loads.