When it comes to inverter and UPS I will blindly suggest you for LUMINIOUS INVERTER AND UPS.
Before using this brand inverter I was using SU KAM inverters. I faced many problems especially in SU KAM inverters as the main problem is regarding battery and services. Battery discharges soon and when I change the battery it tooks the service agency 3 months to give a new one.
But from my personal use of Luminious its about 2 years or so I haven’t faced any problems regarding this.
Luminious battery is 875v and its bit light to be a portable object. I used much this inverters in summer days when there is power cuts in night time. I was able to use three 60 watt bulbs and a fan with TV and it gives best battery back up around 3 to 4 hours. Best in class. I too use Luminious UPS for my PC and during power cut it gives a back up of 20 to 25 minutes where others give just 15 minutes or below. Services of Luminious is unquestionable.
Best brand for Inverters and UPS. Strongly reccomend to go for it.