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The Stepper, like its name implies, steps 120V up to 240V or 240V down to 120V. This is really handy for those who send amplifiers overseas and want to test their products at full voltage. Universal sockets and plugs are provided for US and EU connections. The power rating is 500 watts.
Note that the actual unit is labeled 110V and 220V. However, it is a 1:2 and 2:1 transformer so if you put 120V in, you will get 240V out.
Qty Price Description Buy
 $75  Stepper Transformer Unit