I purchased microtek inverter nine years ago.its still running very good.i bought it in rupees three thousand two hundred then .i dont now what is the price now.it is a pure value for money product .i am fully satisfied with it.there is not a single problem or any maintaince issue I faced in last nine years.its also indicate overload and give siren when battery become low.you can buy it what we say in hindiannkh band karke.