This invertor from su kam is designed specially for the indian masses and for the indian environment. There are many advantages in choosing this product. First of all,it saves you a lot of money as you do not need 4 batteries for operation this as required in contemporary invertors. 3 batteries are more than enough. Secondly,it reduces your electricity bills by consuming less power than other machines. It also effeciently protects your other important machines and appliances.