# Question about Device voltage **URL:** \ **Category:** Anova Support\ **Created:** [November 30, 2016, 9:22pm UTC](https://community.anovaculinary.com/t/question-about-device-voltage/1475 "2016-11-30T21:22:33Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![michihenning](https://sea2.discourse-cdn.com/flex016/user_avatar/community.anovaculinary.com/michihenning/32/1655_2.png) [@michihenning](https://community.anovaculinary.com/u/michihenning)\ **Post date:** [March 18, 2019, 6:30am UTC](https://community.anovaculinary.com/t/question-about-device-voltage/1475/8 "2019-03-18T06:30:14Z")
> [@MichaelF](#): > > I really wouldn’t recommend trying this for a SV cooker More info here: > [@Bought a 120V. We use 240V back here.](https://community.anovaculinary.com/t/bought-a-120v-we-use-240v-back-here/19200/3): > > I don’t buy it. I don’t see how a transformer could fail open, seeing that there is no galvanic connection between the primary and secondary coil. Moreover, a step-up/step-down transformer will have a fuse in it that will prevent excess current flow so, even if it were to fail open, the fuse would blow. If there is a short against the chassis of the transformer (primary or secondary side), an RCD (residual current device, aka earth leakage detector) will trip instantly. (Most households will ha… > [@Bought a 120V. We use 240V back here.](https://community.anovaculinary.com/t/bought-a-120v-we-use-240v-back-here/19200/5): > > Something like this will do the job: [https://www.wallcann.com.au/1500w-step-down-transformer/#productInfoTab1](https://www.wallcann.com.au/1500w-step-down-transformer/#productInfoTab1) Note that these things are big, heavy, and expensive. Also note that you need something that will handle 800/900 W for extended periods. A 1000 W transformer might (just) be sufficient, but would struggle during the initial heating period, possibly getting too hot and turning itself off. A transformer will work fine as long as it is rated for the load. But it’s easier and cheaper to buy a device that matches your mains voltage. --- _[View the full topic](https://community.anovaculinary.com/t/question-about-device-voltage/1475)._