Actually I have bought this for 3 years ago.
So far luminous Ecowatt is durable and the capacity of battery is good but gradually battery becomes weak and I think every companys battery becomes weak by using
Luminous product is good and price is not costly compare to other companys product,
But we have to put distilled water in battery after every three month.
Company gives warranty luminous inverter and battery and there are lots of inverter of Luminous is avaliable in market with different vott and different price, We can rely on this product.