We bought this inverter form Microtek 3 years ago. Within two years of its use we replaced it. It got really bad in its functioning. After few years of its use it started to give defects and power backup reduced. Eventually it fell down to 1-2 hours of backup. After complaining a lot and getting it repaired, again it started to show defects in it and had to replace it in last. Not a durable product in my experience.
Value for money is extremely less.