Luminous invertor is private company. it is very good company. Its founder is Rakesh Maholtra. And is head quater in New Delhi. Its managing directpr is Vipul Sabharwal.Luminous manufactured the batteries. it has several patents to its credit in the invertor and battery. Luminous has ventured in electrical product space. They include electrical wire and cable. A UPS differ from an auxiliary or emergencg power system or standby generator. Luminous fans and invertor is very good quality. I like this.