Heavy duty quality & design that outperforms the competition! This is a state-of-the art inverter made with only the highest quality components designed to outperform the competition on nearly every level. Being in the inverter industry many years we've witnessed 1st hand the junk inverters coming out of mainland China. We've tested many of those low quality inverters under various loads and conditions. What we found to be consistent is that pretty much any of them that were manufactured in China were just plain poor quality by our standards. This unit is produced to very high standards and it shows with it's track record as it's proven very reliable. We regularly see it handle 3500 watts of load without breaking a sweat. Plain and simple.....it's a real workhorse.