Luminous inverter is one of the top trending inverters which have a huge great life.we are using this invertor from last 1 year and we could not find even a single problem in battery life but their is one problem in the inverters stand which is made of cheaper material but in battery their is no problem and look of this invertor is also cool.IF am using high voltage appliances in this inverter if the light is gone they showing me red alert battery is overloaded.If you are using this battery normally it gives you backup of 2 to 3 days normally.if someone want to buy inverter I highly recommend to buy luminous inverter and UPS.