Installed Su-kam Sine Wave inverter at home about 8 years back and power cuts is history.Although I had replaced the battery but the inverter never gave me any major problems.It had UPS and Inverter mode according to the need if you have a UPS for a computer.
I have a 600VA capacity inverter and it is enough to light about 10 CFL bulbs 2 tube lights and a 42 inch LCD tv.
I am so reliable on the inverter that I do not have a single candle at hime nor any torch like it was needed when I did not have an inverter.