Su kam is one of the best brand of inverte. su kam pure sine wave is one of the best inverter of su kam. It works properly when power is cut it auto starts without any extra works.
It has one problem that it has cooling fans which is created loud noise and irrated to all family. It has different types of indicator like inverter mode main mode charging and overload and many more. It works good but some people complained about its noise. I suggest it.