Microtek is the best Inverter manufacturer in India from decades.I recently installed this inverter in my office. This inverter is best for the office & home uses.Its battery /power back up is reliable & consistent. Also charging time is less compare to others.The machine shows different types of indicators like charging, full charged, fuse cutoff, overload beeps etc. And its very user friendly to find the problems by its indicators to anyone. I installed microtek companies inverter in my home 9 years ago and believe me its running smoothly and maintenance free, yet I don’t get any problems to repair this als company increased the efficiency and performances for new machines, so if you are looking for long period then go for this inverter.