Have ordered this inverter after the inverter Trust humming noises caused in the power supply (square wave). My Samsung 32 "TV works great with the inverter of Waeco, however, should not operate the inverter in the same room as the TV one, since the fan inside the inverter is far too loud and is temperature controlled in any way. The fan runs at full speed at a consumption of 50 watts, although the unit is cold. the noisy fan was its predecessor criticized in the unit before, but was changed in Waeco nothing, unfortunately. Therefore, the unit went back and ordered me to IVT sine wave inverter. review is nachlesbar :)