Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: I purchased a Hot curling brush from USA rthat is 110V. I live in SA and need an adaptor/converter for 220V 50 W.  Will this adaptor be suitable.
Document: It gets quite hot when plugged in to 220V, so I unplug it when not in use. Otherwise works fine.
Got two of these for my wireless microphones from China (220V).Btw, I am using them in the United States (110V).Works perfectly so far.
I purchased this item in store at a local department. It worked okay for a few uses (about 3 or 4) but then in Paris, it completely stopped working. It tended to get hot during its use as well. Any motor driven part tended to run slower even though it was well within the limit of the voltage. It also did not hold up well when plugged into a wall.
We have used it many times for a back massager from Russia (220V) in our U.S. outlet (110V). No problems with it at all, works as described for many months now...
It melted after 5 minutes of usage with a 70 watts wine fridge connected. If they say 100 watts it should be clearly stated that 100 is mak for peaks and maxumum continuous operation is 50 watts. I returned and purchased a 200 watts one which is working perfectly.
My 230V radio in 110V network gave bad interference noise when I used this converter. Watts were not a problem, radio was small. Same issue with another 230V lamp, it was flickering a lot. However, my radio works beautifully with a bit more expensive converter (Goldsource STU-1000 Step Up/Down Voltage Transformer Converter) which apparently gives smoother voltage wave.
I ordered this to use with a small appliance i bought from India to be used in USA> (t 220-110)... but this converter did not work at all.. the light on the device would not turn on.. it was broken upon arrival.. i am returning it ... shop for other converter. this is some cheap china brand
But if you are using it for a hairdryer or another device with heavy moving parts (like an old tape recorder that uses 3 motors), then you need to pay special attention to #1 and ensure that the wattage rating of the transformer/converter is actually 20 to 30 watts greater than the motorized device's rated power consumption.These are the precautions I took and it worked perfectly for me.
The converter didn't quiet work. I bought it to power my OSIM back massager I purchased while I was in Hong Kong. It would power the massager but unfortunately for some reason it wouldn't work to the full capacity (there wasn't enough pressure). I tested it before I left Hong Kong to return to the states and it worked fine so I know it had to be the converter issue. I also know it wasn't the wattage because it only took 35 watts and this converter goes up to 100.
At first, it worked great. It claims to handle up to 100W but when I put an item that was 80W it blew a fuse and became very hot, hot enough that I needed a hotpad to handle it. Now, I won't even bother trying to replace the fuse, if there is one, as I'm afraid to use it, fearing it may be a fire hazard. I've used these type items many times, always respecting the W limit, and never had this happen before.
Answer: Hello, I bought this converter in combination with a 110V pyrographic tool. After two days use, the tool had a short circuit and also the converter was burned through.I dont know if it was the tool or the converter that has caused the malfunction. That was my experience; I cannot advise you. The only thing I can say is that I would not buy this converter again. Wish you luck with your purchase!!! Hans Melissant