PowerBright 300 Watts Japanese Voltage Transformers, Step Up and Down Japan Converter, can be Used in 120 Volt and 100 Volt Countries, Convert from 120V to 100V and 100V to 120V

Ok so, check it. I play a Japan based Mobile crane game called Toreba and, ended up winning a bunch of stuff up to and, including Small Appliances all of which are the Japan standard of using 100 Volts instead of the American standard of 110-120 Volts. The reason why I ended up buying a couple of the 1000 Watt rated boxes(One for the computer area and, one for the Kitchen.I'll add that story too) is because one of the many items that I had won from Toreba was a single person Sandwich Maker. you know, the kind that cuts the sandwich diagonally as it grills it. Anyway, I loved this thing and, would often take it to work with me just so I could make something quick in like 5 minutes time and, then back to it. (Lots of outdoor kind of work) But, one night I noticed that the top part wasn't heating as much and, the bottom section was scorching my bread so I knew it was probably about to out and, sure enough It quit later that night. I opened it up and, all the wiring all looked intact and, everything but, I guess the elements just burned out. So I admitted defeat and, knew that I brought this on myself because I knew that it would happen eventually, I just didn't know that it would happen that quickly (like a month and a half of use) but, I did get some fair bit of use out of it. Now for the story of the Prior-mentioned Kitchen placed box. My wife's coffee pot had stopped work properly and, she needed another one but as luck would have it, I had also won a coffee maker from Toreba as well. Again, it was a Japan standard 100 V unit. So she tried it out and, it worked great but, she mentioned to me that it was kind of difficult to turn it off at the switch(located on the back) because the unit was fairly hot to the touch. Again I chalked it up to Over-volting. I knew that I didn't want to burn out the coffee maker just as quickly as I did the Sandwich Maker so I starting looking for converters to lower the voltage and, after a little bit of searching, landed on these units here. After looking at a fair amount of the small appliances that I had won, I had see that none of the Watts had gone over 750 so I bought a couple of the 1000 Watt rated unit to give myself a little wiggle room. So after they arrived, I plugged one into the kitchen and, then her 100V coffee pot into it for her to try the next morning and, the result was instantaneous. It brewed her coffee and, she reported that the coffee pot wasn't too hot to the touch anymore to be able to turn it off. Ok cool, mission accomplished. Even now as I'm writing this, I'm using the Step down unit in tandem with a small 23cm wide electric grill 100V at my computer desk for a small meal. It really does work wonders and, was totally worth the buy. In fact, if I might even end up buying a third to take with me to work so I can use some my small appliances at work to make a quick meal and, back to it. If you have any plans of traveling to a place that has a 100V standard or you happen to have small appliances that use it, I would highly recommend this. Now, on the other hand, I haven't tested out the 120V option yet because I haven't had a reason to yet since I can just plug things into a normal outlet. Thank You for your time.

It works. It will allow one to run a Japanese device in the US. It will allow one to run a US device in Japan. NOTE: If you are planning to use this product in Japan, it does have the standard US grounding third prong. Also regarding the plug, some US products have a wide blade on one side, but this product does not. The blades on this plug are symmetric and will fit a Japanese socket that has been modified to accept the grounding prong.

These are well designed and perfectly safe as long as you make sure you get the proper power rating!! I use these for Soviet-era, vacuum tube guitar amplifiers (like the Sovtek MIG-50 and MIG-100 amps) that blow fuses when powered by western (US/UK) AC mains. The Soviets didn’t leave any safety margins (“First we fly monkey and dog to space, they no come back. Next we send man. We pay family when he not come back”), and can’t handle the higher mains voltage. These transformers are perfect for several reasons: 1) they step down the AC mains so the amps don’t blow up, 2) they isolate the AC so you don’t get electrocuted, and 3) the transformer filters line noise (like lighting and motors) to keep the amps quiet. The 100W is perfect for the MIG-50. I added one to the MIG-50 in my friend’s studio (which gets heavy use), and not only is the amp super reliable, it sounds creamy and articulate, like these amps were meant to sound. Best bang for the buck. By the way, as an electrical engineer, I can comment on several of the negative reviews: They’re either people running high-powered appliances (like washing machines) through under-powered transformers (all the “the fuses blow” reviews, yeah, that’s what they’re for), or the reviewer doesn’t understand grounding (the enclosure is grounded, but the transformer isn’t”, yeah, that’s by design).

I was a little leery purchasing this product because I wasn't sure if it actually worked. There's no way to check the current output to make sure it was actually 100 volts in the 100 volt outlet. I guess I should've of believed the marking on the outside. My Japan stereo component works great with this. No worry about getting hot. Great product. I would purchase this again if I needed another. It is a little expensive for the shipping and there was a small dent on one of the corners of the metal case, but it still works. I'm not going to return it. I should get a small discount for the dent though.

DEAD ON ARRIVAL When I finally received my Japan stereo equalizer I opened up my converter to find it non functional. DOA. The cord was in a mess with the twist tie so it was obviously used. I checked the external fuse and it’s blown. So obviously someone overdrove this thing and returned it. Now I’ve got a paperweight. I’m not sure if it’s junk but the fuse is an odd size. Not sure I can find a replacement. Too late to return it. That’s my bad. It’s a transformer. What could go wrong ? Well it’s DOA. There are a lot of other models on here. I’d recommend trying someone else.

Works as described

Probé con medidor de voltaje y hace bien su función. Silencioso

No funciono

Great price and does exactly what I need it to do

Muy útil y de buena calidad en su construcción. Cumple al 100% con la descripción.