This is a good quality of inverter which makes the battery life more and it do not consume more power or electricity. It have less maintenance and more trust. It's affordable for commen people. It's like is more then the other invetre and it tell the time u till it will work and how much it's battery backup is left. It's of low price and contain additional features then other ups. It is a international brand which gives the good quality of product. It's battery is good and it don't sound more then the other invetre.