I purchased V Guard Invertor last year and till now its working perfectly. The inverter automatically turned on when the supply of light goes.
The v gaurd inverter controls the fluctuation of electricity and keep our electronic devices safe from short circuits.
After inverter is fully charged the inverter gives backup of 48 hours in my house. The inverter comes with a year warranty and they ask for the maintainance on the regular basis. Overall I am very much satisfied with the performance of the inverter and its customer support. Highly recommended if anyone planning to buy inverter. It is definitely a worthy purchase.