Buy Seven Star 100 watt 110-220 volt Transformer Converter

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I got an european lamp (220V) which I wanted to use here in the US and the transformer works perfectly for it as it converts both ways I will use it when I return to Europe to power my laptop.

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I bought it to use a Swedish lamp in the US. It reliably does exactly what it is supposed to: transform voltage. The construction seems sturdy and of high quality, and it looks pretty nice too (for beeing a voltage converter). Highly recommended.

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Pros: Not expensive

Cons: Complete failure!

I bought one of these transformers to take with me on a year-long fellowship in Switzerland. I thought it would be fine because it was able to convert 110V to 220V-240V (Switzerland is 230V). When it arrived in the mail, it smelled like gasoline. I called Amazon and requested a replacement, which they sent out immediately (love Amazon!). When I got the second in the mail, it smelled the same, so I decided to take a chance and just take both of them with me. I should have trusted my instincts!

When I got to Switzerland, I found out that the plug did not fit Swiss outlets, so I finally found a plug that would adapt a European plug to a Swiss plug. I charged a phone on it, and it worked no problem. I took that to mean that it would work for my motorized wheelchair, the ONLY reason I went for a heavy duty transformer instead of a simple converter--it should have been able to handle a continuous load over several hours, as advertised. So, that night, I plugged in my wheelchair before I went to bed. When I woke up in the morning, I discovered that I had blown the circuit in my room--not a big deal. I called for help and got ready for the day while I waited. In the process, I used my second transformer to try and dry my hair in another room. A big puff of thick black smoke rose out of the box, and that transformer died. This was totally my fault because I should have realized the wattage was too great for it to handle. However, once security helped me turn the power back on in my room, I realized that the transformer I plugged my wheelchair into was also dead.

I did the calculations 5 times to check the wattage of my batteries and made sure that I bought a transformer that could handle twice the wattage of my wheelchair. The transformer should have worked!! Now, I am stuck and am thinking about buying a Swiss wheelchair (super expensive) just so that I can get around on my own. This is a really bad situation, and I wish I had listened to my gut instinct! If you really need a heavy-duty transformer, DO NOT BUY THIS!!!!

P.s. I bought a Swiss hair dryer rated at 2000W, and it works, so I know that it was the transformer that broke the circuit and not my wheelchair.

Honest reviews on Seven Star 100 watt 110-220 volt Transformer Converter

it was a gift to be used in other country (Chile). It is working perfect. They use 220 and so far it has not show any problem at all.

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I havn't had any issues.its a tad noisy, not loud just Avery low hum which is to be expected from a transformer. Work as advertised though and doesn't overheat.