Received very quickly, the inverter operates; it is in the life we can clearly judge. On the device itself, we regret the stiffness of the power cable. It is terribly complicated with the installation of software that "remote" a judgment of the host machine if the power failure lasts somewhat (essential). No information is given in the instructions and you have to paddle on the Internet (in English) to download the software manual is very difficult to understand. The software is ViewPower; the file to install is installViewPower_Windows.zip and is still 153 118 Mo. The notice is ViewPower_user_manual.pdf but it is somewhat abstruse.
Nevertheless, it works ... but it is not clear how