Good value 3500w constant 48v 'pure' sine inverter?

[blinkybill]

Looking for a good value 48v dc > 240v ac 50hz 'pure' sinewave inverter (no need for charger/mppt/backfeed).
Has anyone tried this one? -
https://www.ebay.com.au/itm/114690705567?hash=item1ab419489f:g:WGsAAOSwuhZgLgGS&frcectupt=true
Don't really need a beefy low frequency type.

What are common faults regarding these cheaper ones if only used ~50% capacity most of the time?

Cheers

 

[12VoltInstalls]

common faults regarding these cheaper ones if only used ~50% capacity most of the time

They die early or cease to function after an extended high load. caveat emptor