I have bought this inverter, I thought that it is a nice brand and its inverter will be good but it is not, su kam falcon 750 pure sine wave inverter is not a user friendly inverter it creates very problem while operating, it is not durable. The battery of the inverter is poor, it was working fine when it was new but after some time, the battery life reduced and it remains on for maximum of 2 or 2 and half hour .