Grrr i am getting too many complaints about these units. They make a huge buzzing sound when trimming the voltage down. Here it is supposed to be 220v so in the end i set them to 240v to calm the thing down. of course there is no user modified settings at all apart from the 220-230-240 voltage switch.
gotta find some way of silencing the transformer........
gotta find some way of silencing the transformer........