I am using luminous inverter since 14 years and I think this is the best company for inverters. It gives a good battery backup from battery it also charges battery very fast and gives indications nicely that over loaded battery low etc. It works very nicely. It also gives assurance of safety by controlling power supply itself it aslo help in saving energy. It don't make the battery to get ruin earlier.
It increases the battery life and maintain it I like to tell all my readers that I preffer you use this brand it is my assurance that you will forget all other brands.