I am using this product from last 2 years. 600 VA is sufficent for my family. I have 4 ceiling fans, 2 tube light, 4 small cfl and 1 32" led tv in my home. In my cities I faced a major problem with load shedding and regular shut downs for long hours. it is good option to continue daily works undisturbed due to the electrical power cuts . this device is designed to convert ac from dc. it comes with a two year warranty . the service centres are spread out all over the country with excellent service backup.
I loved its micro controller based intelligent design & auto trickle mode with smart sensor overload identifier.