[. . . ] Avoid any hazards, please observe the following instructions carefully: The NL is a lightweight, regulated switch mode AC adapter which is ideal for the power supply of high-performance consumer and computer devices. [. . . ] Setting the voltage too high may lead to the malfunction or destruction of the connected device. For USB power output, replacement of charging by computers, the selector must be set to 6V!OUTPUT CURRENT (mA) Make sure that the connected device does not consume more current than the maximum output current of the AC adapter permits. Exceeding the maximum capacity may overload and destroy the AC adapter. This is not a power adapter fault, but indicates that such device needs a special power adapter. Please ask for special charging adapters from Vivanco for that kind of devices. Save Energy: Your adapter is using the energy saving switch-mode technology. But you can save even more energy and money, when you disconnect the adapter from mains, if you don´t use the powered device for a longer time periode. [. . . ] But you can save even more energy and money, when you disconnect the adapter from mains, if you don´t use the powered device for a longer time periode. [. . . ]