I assume you are talking about this:

https://www.amazon.com/Inverter-Stackable-DC20-45V-AC90-140V-Output/dp/B07281BDDY

The description makes it sound like cheap Chinese rubbish that's gonna kill you, your dog, your family, and any linesmen working on your house :D

I'd be dubious about whether it can actually output 1000 watts of power. Basic MPTT charge controllers* are more expensive than this. And this supposedly has electronics that can also handle synchronising it with the AC power grid.

*EPEVER Tracer 40A (1000W at 24V) is $140 on Amazon