Exide 850 VA pure sine wave inverter is good quality product by exide. It works about 3years in my house.
Ease to use , simple for use after connection koi problem nahin .Looks like a better , simple in design , light weight. Cleaning simple no chance for shock.
Inverter ups works good computer works regularly after power cut. Low and high voltage maintain automatic smothly . It is useful for small home , shops, office. Kabhi koi problem nhi so no comment on his service center.
Thank you .