Hi.I bought microtek sinewave inverter with exide 150 mh tubular 12 v battery 3 years ago.The result is amazing.With proper maintanance it provides me 9 hours of backup.The model is very handy and the design is attractive. I got it from a retailer Saba Electronics in katihar.The supply full fills the load at my house.The cooling fan inside it keeps it in proper temperature.The signal indications are easy to understand and there is flicking sound in case of haevy load.According to me it is the best option to buy if you are planning to have one.