--- product_id: 63028920 title: "UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective" brand: "umi" price: "$183.09" currency: USD in_stock: true reviews_count: 8 category: "Umi" url: https://www.desertcart.us/products/63028920-umi-300w-120v-to-220v-step-up-voltage-converter-step store_origin: US region: United States of America --- # 300W max power output Compact A5-size footprint Multi-layer safety protections UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective **Brand:** umi **Price:** $183.09 **Availability:** βœ… In Stock ## Summary > 🌍 Power your world, no matter where you are! ## Quick Answers - **What is this?** UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective by umi - **How much does it cost?** $183.09 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/63028920-umi-300w-120v-to-220v-step-up-voltage-converter-step) ## Best For - umi enthusiasts ## Why This Product - Trusted umi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Space-Smart Design:** Sleek A5-sized footprint with non-slip silicone base fits perfectly on any desk or shelfβ€”no clutter, just style. - β€’ **Safety First, Always:** CE & CQC certified with thermal, overload, short-circuit protections plus a replaceable fuse for worry-free use. - β€’ **Dual Universal Sockets:** Plug in two 220V appliances simultaneously, maximizing your workspace efficiency with up to 240W total load. - β€’ **Power Your Global Gear:** Seamlessly convert 120V US power to 220V for your European and Asian devices without a hitch. - β€’ **Built to Last & Perform:** Heavy-duty pure copper coil and toroidal transformer ensure quiet, efficient, and reliable voltage conversion. ## Overview The UMI 300W Step Up Voltage Converter transforms 120V US power to 220-240V, enabling seamless use of international appliances. Compact yet robust, it features a pure copper coil toroidal transformer for quiet, efficient operation, dual universal sockets for simultaneous device use, and comprehensive multi-layer safety protections. Perfect for professionals who demand reliable, space-saving power solutions for their global tech. ## Description Buy UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective: Isolation Transformers - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Compact, looks good and just works. - It just works and reliably. If you're buying one of these it's likely you've moved some equipment from the UK to the USA, this is a very good product, I've been using it most days since the purchase, and I've bought a second. I use mine to power my old mini-Hi-Fi systems, and old Philips Streamium is used daily and works great, what I like is the universal sockets at the back, and there's two, just to ensure I don't accidentally plug in the wrong equipment, I still use the original UK power cords. On the front is the US power input, which is probably the only thing I'd changed, why not have all the power going in the back, leaving a clean front, with power button, however that's a pretty minor complaint. What I really like is this box doesn't look like a relic from Cold War Eastern Europe, looks fine when put next to a piece of hi-fi equipment from this century. It's quite likely you'll need this accessible so it's nice that you won't mind it being on view. Other points to note, it's not too heavy, I've got a much higher power unit for powering things like cooking appliances, but that is so heavy. It's worth going for a power level around double what you expect to use, just to keep well within tolerances. Perhaps one thing that you might not think of, the front panel button is a welcome addition, with the US sockets, you rarely have switches, this button is a great feature when you just want to turn off the power. Review: Does the job, and does it well - Based on other reviews, I bought this to be able to use a UK-model Sony "bookshelf" stereo here in the US. It's been in continuous operation back in my workroom for about 7 months now, with the stereo running for several hours a day (I listen to it a lot while working), and I'm well-pleased with its performance. It runs cool and quiet -- of course, I doubt the stereo is really taxing the wattage limit of this unit, either -- and doesn't appear to emit any significant amount of RF interference since the stereo has no problem receiving even AM stations despite the transformer sitting less than a foot away from it. I also like the fact that some thought was put into its external appearance so that it blends in with the rest of your TV and stereo gear, instead of being a chunky, industrial-looking black metal box like most other transformers of this type. If I acquire any more vintage UK or European stereo gear in need of a similar step-up transformer, I'll definitely buy one of these again! ## Features - Space-saving & Non-slip Design: The 120V to 220V converter measures 8.46" x 6.02" x 1.97"(21.5 x 15.3 x 5 cm) including the base, which is about the size of an A5 sheet of paper. It can be easily placed on a shelf or tabletop, effectively saving space. The base is equipped with a non-slip silicone pad, ensuring the device grips the desktop firmly and preventing accidental falls, even if the cable is tugged - Pure Copper Coil: Why does this step up converter weigh 5.5lbs(2.5kg)? This is attributed to its built-in high-performance toroidal transformer, which utilizes a toroidal iron core and pure copper coils rather than cheap aluminum. This sense of substantiality implies quiet and efficient operation. Please note: This is not a portable adapter - Stable Conversion: The step up transformer is specifically designed for countries that use 110V (such as the United States, Canada, and Mexico), allowing you to use appliances from countries that use 220V (eg. Europe, China, South Korea,etc.). It is compatible with low-power appliances operating at 50/60 Hz, such as mobile phones, computers, audio, etc - Dual-socket Output: The step up voltage converter is designed with two universal output sockets that can be used simultaneously. Please note that this transformer has a rated power of 300W. We recommend that the maximum power of your device not exceed 240W. Be sure to verify the total power consumption of all connected appliances to ensure it does not exceed the converter's capacity limits - Multiple Functions: CE & CQC Certified. The 120 to 220 transformer features a built-in microcomputer control system that provides multiple layers of protection, including thermal, fuse, overload, and short-circuit protection. It also has a built-in spare fuse that you can replace if the fuse blows due to an overload ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B078H3KG7Z | | Best Sellers Rank | #54,323 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #222 in Power Converters | | Brand | UMI | | Brand Name | UMI | | Customer Reviews | 4.6 out of 5 stars 144 Reviews | | Item Dimensions D x W x H | 2.05"D x 6.02"W x 2.05"H | | Item Weight | 6 Pounds | | Manufacturer | UMI | | Maximum Frequency | 60 Hz | | Minimum Frequency | 60 Hz | | Model | LX-300C | | Mounting Type | Desktop Mount | | Number of Items | 1 | | Part Number | LX-300C | | Power Source | Corded Electric | | Product Dimensions | 2.05"D x 6.02"W x 2.05"H | | Unit Count | 1.0 Count | | Warranty Description | 2 Year Manufacturer | ## Product Details - **Brand:** UMI - **Item Weight:** 6 Pounds - **Mounting Type:** Desktop Mount - **Power Source:** Corded Electric - **Product Dimensions:** 2.05"D x 6.02"W x 2.05"H ## Images ![UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective - Image 1](https://m.media-amazon.com/images/I/518SMLHhoOL.jpg) ![UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective - Image 2](https://m.media-amazon.com/images/I/61k112X35SL.jpg) ![UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective - Image 3](https://m.media-amazon.com/images/I/61zbMbiJcaL.jpg) ![UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective - Image 4](https://m.media-amazon.com/images/I/61GQdU2AbPL.jpg) ![UMI 300W 120V to 220V Step Up Voltage Converter, Step Up 110V to 220V, Work with 220-240V Appliance in US, Safe and Effective - Image 5](https://m.media-amazon.com/images/I/61GQ8jR40+L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Compact, looks good and just works. *by M***T on May 14, 2025* It just works and reliably. If you're buying one of these it's likely you've moved some equipment from the UK to the USA, this is a very good product, I've been using it most days since the purchase, and I've bought a second. I use mine to power my old mini-Hi-Fi systems, and old Philips Streamium is used daily and works great, what I like is the universal sockets at the back, and there's two, just to ensure I don't accidentally plug in the wrong equipment, I still use the original UK power cords. On the front is the US power input, which is probably the only thing I'd changed, why not have all the power going in the back, leaving a clean front, with power button, however that's a pretty minor complaint. What I really like is this box doesn't look like a relic from Cold War Eastern Europe, looks fine when put next to a piece of hi-fi equipment from this century. It's quite likely you'll need this accessible so it's nice that you won't mind it being on view. Other points to note, it's not too heavy, I've got a much higher power unit for powering things like cooking appliances, but that is so heavy. It's worth going for a power level around double what you expect to use, just to keep well within tolerances. Perhaps one thing that you might not think of, the front panel button is a welcome addition, with the US sockets, you rarely have switches, this button is a great feature when you just want to turn off the power. ### ⭐⭐⭐⭐⭐ Does the job, and does it well *by G***S on February 6, 2025* Based on other reviews, I bought this to be able to use a UK-model Sony "bookshelf" stereo here in the US. It's been in continuous operation back in my workroom for about 7 months now, with the stereo running for several hours a day (I listen to it a lot while working), and I'm well-pleased with its performance. It runs cool and quiet -- of course, I doubt the stereo is really taxing the wattage limit of this unit, either -- and doesn't appear to emit any significant amount of RF interference since the stereo has no problem receiving even AM stations despite the transformer sitting less than a foot away from it. I also like the fact that some thought was put into its external appearance so that it blends in with the rest of your TV and stereo gear, instead of being a chunky, industrial-looking black metal box like most other transformers of this type. If I acquire any more vintage UK or European stereo gear in need of a similar step-up transformer, I'll definitely buy one of these again! ### ⭐⭐⭐⭐⭐ Excellent choice. *by N***R on April 22, 2026* Excellent choice. I already have made many mistakes by operating heavy consumers in parallel, and it protects me well and shut down the voltage in time. ## Frequently Bought Together - UMI 110V to 220V Step Up Voltage Converter LX-300C Toroidal Transformer for 220V Appliances to Be Used in US, Simple White Plastic Shell, Safe and Effective - 6 Pack Travel Adapter: European to US Outlet Plug Adapter (White) - 4 Pack Universal Adapter, Europe to US Plug Travel Adapters (White) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/63028920-umi-300w-120v-to-220v-step-up-voltage-converter-step](https://www.desertcart.us/products/63028920-umi-300w-120v-to-220v-step-up-voltage-converter-step) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-10*