Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: I have washing machien , it is rated 120 v 60 hz and my power source is 220v 50 hz  what can I do for the frequancy ?
Document: I needed a voltage transformer as I needed to use a concrete drill that worked only with 220V. Although I was sceptic about the frequency difference (50/60 Hz), this worked just great. Plus, I can take devices bought in the US abroad with this as it converts to 110V as well.
Coming back from down under where we purchased a 60-inch LED that only ran on 220v. Would have cost $150.00 to replace the internal power supply. This works great and has trip protection. Great product, just as described.
I need a 110v to 220v converter because I shipped a TV set from China to US. I just have chance to use this converter as my TV just arrived. My TV is a 50 inch plazma and its peak power is 500~600W. The converter generates some noise like whistling when the TV shows bright scene. My guess is when the scene is bright, the TV consumes peak power. This 1000W converter sounds like having some design problem dealing with high power consumption. I am not happy with it.
I should not have bought it. It's got nothing to do with you or the product. I am using a c pap breathing apparatus from South Africa and it's not working. I do not have the 220v cord and transformer  for the unit as a result I have the unit working but not enough power to work the hudimifyer. I would be really happy if you can locate a power supply 220V for this unitThanks
We use these for US appliances in Europe where we now live. One in living room for 50" Plasma, Stereo, etc (plug US power strip into the transformer) and one in kitchen for a wine fridge and various appliances (blender, mixer, etc) that we had. They're both extremely sound products after 2 years of use, super quiet and heavy duty construction. Wish they were smaller but that's just the electronics.
it was a great product. Not only it helps me to run my kenwood chef 220 v but also the safety of the Converter is amazing. I like how quite it is cause I did not hear any sound as other converters.I really recommend it.
I bought this item to be used on some sewing machines that are 110V rated as i would be traveling out of town for a while. the transformer looks ok, and well made, I'm just going to see how long it can keep me going.
It really works properly. No sound, no voltage problem. it works both ways 110 and 220 v, easy to use and handle.
just relocated in US from Italy.Thanks to this converter I've been able to use my 220V 50&#34; PLasma TV + home theatre.It works very nicely and it's very silent. I bougth 2 of it.Only drawback is space + weight..
I purchased the step up/down voltage transformer converter for my son who is now working in the USA. I am an ex-pat living in Europe and everything we have is 220V, 50Hz rated. Well my son took with him several appliances with him that operate only on Euro-Current, so the transformer converter is a necessity for survival. My son love Turkish coffee and there isn't an American appliance that can make the coffee.
Answer: You can reduce the voltage but you can't change the hz. Your washing machine motor will run at a slower RPM (revolution per minute) Are you in Europe?