LVYUAN 5000 Watt Voltage Converter Transformer Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter with 3 US Outlets, 3 Universal Outlets, Resettable Circuit Breaker Protection

I've been using it for a long time without any problems. It can work perfectly with 220V appliances.

excellent! its working so far as expected.

Very pleased with this product. It works well and produces no noise at all. Only issue was that the adapter cable would not connect completely and I had to manually and carefully adjust the inner mechanism in the slots a few times for it to connect to the transformer.

Excelente !!!

Buen producto

Got this to use in my 100 year old house because the old electrical system has trouble with modern appliances like air conditioners and space heaters. But, there is a 220volt outlet for a large window AC on the 2nd floor. This voltage converter worked great to reduce it to 120 volts for use with other stuff when the AC isn't needed.

Moved back to the US after 5 years overseas. I had one of these in every country for my US appliances. I bought several appliances that needed to Step Up and this has been exactly what I needed. Very happy with this. It's lighter than I thought and doesn't heat up like ones I've had before.

Unit was incorrectly wired. Prior to using checked the 110 volt sockets with a cheap 3 light tester. Was plugged into and the switch was set for 110 Volt input. When the power switch was on the tester indicated reverse polarity, when turned off it showed Hot and Ground reversed. The Hot Ground reverse is a false reading due to a broken neutral. Pulled out a multimeter and verified the 110 volt neutral and hot were reversed. More importantly the 230 volt socket tested 120 on both the Active and Neutral regardless of the power switch being On or Off. These results had me suspect a reverse polarity issue with the power switch wired to the neutral. Confirmed this by supplying power an extension cord with intentionally wiring the female end with the Hot and Neutral reversed. This immediately resolved the issue. The terminals on both the 110 and 230 volt outlets no longer had voltage when the power switch was off. With the power switch On the sockets tested correctly, correct polarity on the 110 volts and only had 230 volts on the Active/Hot wire. Contacted support from the Amazon site as per the instructions. Within 5 minutes the chat apologized for the issue and offered refund options. Gave a separate 5 star review on the vendor feedback for the quick transaction. The unit itself seemed well constructed, liked the unit. Needless to say I opened the case and confirmed the neutral was wired to the power switch. Ended up swapping the input Hot and Neutral by re-soldering them at the input connector. Unit now test and operates normally with the original provided power cord. For those wondering I had verified the power source (wall outlet) for correct polarity. In the end have to give it a 1 star review as most users probably would not have the ability to test the unit prior to using it. Otherwise like the construction and very minimal noise from the unit. Nearly silent operation, have to put an ear next to the case to hear any transformer hum. If wasn't for the wiring issue would have given a 4 or 5 star review! The attached pics show initial power On and power Off. Last pic was post modification.

venant de France et en s'installant au Canada, ce convertisseur est parfait, il me permet d'alimenter ordinateur, ecran et imprimante et le second car j'en ai acheté 2, il alimente machine a café, machine à pain, etc...

Il fait fonctionner nos appareils européens (en particulier la machine Espresso automatique) sans aucun problème. A voir dans le temps, mais, pour le moment, c'est parfait (pas très encombrant, prises universelles).

As an a immigrant i brought many of my electrical devices from Iran ( voltage of electricity is 220 v ) and i connected those whith this transformator .all work well .( coffe maker, tea maker,and etc.)

I’m very satisfied this product 100% very useful I’m recommended other people work is 100%

Warning! Serious danger. The outlet suddenly caught fire. Luckily, I was nearby because there were flames, and it could have started a fire in my home. I’ve only had it for two years. At that price, it’s unacceptable.