Su Kam is very best amongst the industry that I came to know when I brought 5kva inverter to Run my AC along with entire house load.I strongly belive and recommend that su kam is very usefull for all hose holds.Battery back up for the same is also too good It runs for 3 hours on my house load and never stopped giving back up.
I also recommended 10kva inverter of su kam to one of my friends, he will run two AC on same.I also seen other inverters of same capacity but not found up to su kam standards.