An absolutely perfect product as the efficiency point of view of the aesthetic point of view. With this inverter, I protect PC, monitor 24 "LCD, A3 scanner and printer with a remaining life of 15 to 20 minutes, so it's more than enough to finish a A3 print out properly and applications. The lines are also therefore protected a guarantee that nothing will be grilled by power surges over telephone lines. Do not forget to put all that is connected together (as above) on the same inverter power surges can otherwise grilling PC ports through which is not protected but connected to the PC! I have mine in European plugs for compactness, in this case need to have the cables "that go" (additional cost expected). Aesthetically, this UPS class integrates with any existing installation (but APC has accustomed us to this!). A purchase I do not regret that I advise and without reservation!