Hi, this is the most user friendly inverter that can light up a thousand smiles.Its fully automatic meaning you don’t have to do a thing once its installed and running.In my opinion and experience after using this for the last 7 months gives me a sense of security in totality. The ever preferred micro controller technology inputs provide clean smooth output of 100% regulation in stable and distortion situations. The device is factory guaranteed to run all of your high end gadgets and home appliances without much worry. The only trouble is that one needs to get a tampered free packaged component from an authorized dealer with papers intact - rest is history, the company has a good reputation worldwide and hence, buying this product is worthy in many ways -the price is competitive and maintenance is trouble free!