I am using Luminous 675 VA from last 4 years and I m totally satisfied with this. When I go to purchase invatar to my local shopkeeper he suggest me about Luminous 675 VA. He simply said this is the best investment I was totally blank that time about invatar I make trust on my shopkeeper and purchase this and today I fell thankful to my shopkeeper for giving me such a wonderful product.He suggest me put mineral water on it time to me.This invatar is a long term investment for me. Keep your invatar in air cross place. I will recommend Luminous 675 VA you can trust on it.