The Luminous Solar Inverter NXG Pro 1KVA 12/24 Volt is an MPPT solar inverter that comes in two variants: one is 12 volts, and the other is 24 volts. In the 12-volt variant, you can use a single battery, while in the 24-volt variant, you can use two batteries. You may buy according to your needs.
You can compare this inverter with the Utl Gamma+ Solar r-MPPT Inverter. Both have 90% similar features. The price difference between both is just 500 to 1000, depending on the city. The approximate price of the NXG Pro is 10,500, and the approximate price of the Utl is 11,000. You can buy Utl online and offline, but Luminous is only available offline.
The Luminous Solar Inverter NXG Pro is not suitable for single solar panel users of 12 volts. You need a minimum of two solar panels of 12 volts in series connection to use this, or you can use a 24 Volt single solar panel. If your solar panels are shaded by trees or other obstacles, Luminous may not be the best option because if your solar voltage drops below 24 volts, your solar setup may not function properly. No manual is provided with Luminous; you have to scan the barcode available on the power switch.
A low battery warning shows when your battery drops below 40%; a loud beep sound will alert you, and there is no option to disable this warning sound. Another issue is that, for instance, if there was no current due to heavy rain for the last two days and your battery was depleted, during the daytime you cannot use solar energy until the battery is first charged to at least 40%. In contrast, other companies' inverters provide continuous output while simultaneously charging the battery.
This is my genuine review of the Luminous inverter based on the problems I have faced. I have not used the Utl Gamma Plus, but I have gathered some user reviews indicating they do not encounter these issues. If your solar panel is the latest technology with sufficient Voc and no shading, then you may consider Luminous. Otherwise, Utl might be a better choice for you.
Download Luminous Solar Inverter NXG Pro 1KVA 12/24 Volt User Manual:
https://drive.google.com/file/d/1g_Yx_NRnTeGzVrJfpaAIhDstf_Y_FBuX/view?usp=drive_link
Download Utl Gamma+ Solar Inverter User Manual:
https://drive.google.com/file/d/10sXr5SAGZ6ieSgaKV9Q83ZGQj87P0K2k/view?usp=drive_link