UPS Sine: A UPS by Luminous

When you are working on some important project and suddenly light had gone and your UPS is starts weeping. after only four or five minute UPS also not worked than imaging what types of trauma you had faced. I was witness of the same event and I had to pay a major cost for it after that I decided that I will purchase a very good UPS that provide good power backup and provide sufficient time to bind –up my work. I got to know about Luminous new technology based UPS Sine. I took it and start working on it. I felt it is very-very good UPS. It provides long back-up. Sorry first I should introduce my self. I am Amitabha Sengupta and working as a SEO head in a Online company. After using Luminous UPS I feel this Indian company is making really very good products. My UPS is 800VA , and Now I will buy some more UPS for my office use but I haven’t How can I approach to company for more rebate on bulk purchase. Luminous is making inverter also so I would like to use it also because my old inverter is not working properly I want to know any exchange offer in luminous.