--- product_id: 494399842 title: "Umi 300W step down voltage converter" brand: "umi" price: "₩186280" currency: KRW in_stock: true reviews_count: 2 category: "Umi" url: https://www.desertcart.kr/products/494399842-umi-300w-step-down-voltage-converter store_origin: KR region: South Korea --- # 300W heavy-duty power Step-down 220V to 110V Multi-layer safety protections Umi 300W step down voltage converter **Brand:** umi **Price:** ₩186280 **Availability:** ✅ In Stock ## Summary > 🌍 Power your US gadgets worldwide with confidence and style! ## Quick Answers - **What is this?** Umi 300W step down voltage converter by umi - **How much does it cost?** ₩186280 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/494399842-umi-300w-step-down-voltage-converter) ## 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 - • **Advanced Safety Suite:** Built-in surge, overload, thermal, and short circuit protections keep your devices and home safe. - • **Compact Yet Rugged Design:** Slim profile with premium toroidal transformer ensures durability and quiet operation. - • **Reliable 300W Power Output:** Supports a wide range of household devices up to 300 watts without compromise. - • **Certified Quality Assurance:** ETL, CE, and CQC certifications guarantee trusted performance and energy efficiency. - • **Precision Step-Down Voltage Conversion:** Seamlessly converts 220-230V input to stable 110-120V output for US appliances abroad. ## Overview The UMI Step Down Voltage Converter is a robust 300W transformer designed to convert 220-230V power sources to 110-120V, enabling safe use of US electrical appliances in Europe and other 220V regions. Featuring a premium toroidal core and copper coils, it delivers stable, quiet, and energy-efficient performance. Despite its compact footprint, it weighs 6 pounds, emphasizing durability over portability. Multiple built-in safety protections and international certifications ensure reliable and secure operation for devices under 300W. ## Description Product description UMI Step down Voltage 220V to 110V Converter Highlighted 1: Prior to purchasing a voltage converter, and to avoid user frustration or unnecessary returns, it's essential to check and verify your appliance's Maximum Power Consumption (MPC), which could be located on the device's nameplate or written in the user manual. The MPC of device must be less than the Maximum Load Capacity (MLC) of the power converter. Otherwise it will NOT work properly. For safety use and best results, the manufacturer recommends that the voltage converter's MLC should be equal or higher than the MPC of your appliance. Highlighted 2: If you live in Europe or Asia and you want to use electrical appliances from North America, please choose the 220v to 110v step down voltage converter. And if you live in the US or Canada (110 V) and you want to use appliances from Europe or Asia(220 V), please choose the 110v to 220v step up voltage converter. Highlighted 3: Do not make the converter works in full load for a long time. Make sure the total power consumption never exceed 300 watts. Why using our products Step down voltage 220V to 110V converter. Work great with 100-120v electrical appliance in Europe or Asia UMI 300 Watts Lightweight Step Down Voltage Transformer Converter. Step Down Voltage 220-230 volts to 100-120 volts. US to Europe voltage converter, which work with your 110v appliance in UK, France, Germany, Italy, China, Australia, New Zealand, India, Vietnam, South Korea, Thailand and other countries use 220V or 230V. High quality pure copper wire instead of aluminum wire The 220V to 110V converter is compact and functional, quiet and efficient. Built-in high-performance toroidal transformer, which uses toroid core and pure copper coils. With good transformer, the voltage converter has stable output and low consumption. Functional, quiet and efficient. Compact and modern looking UMI Power Converter 220V to 110V transformer can be used with kinds of electrical appliances, devices and equipment up to 300 watts. Such as hair curler, hair straightener, bladeless fan, electric shaver, robot vacuum and so on. The appliances to use with our products Hair dryer and vacuum Suggest use 2000W voltage converter. But actual product may vary. Please refer to the rated power of appliance and device. Juicer and blender A 1600W voltage converter is recommended. But actual product may vary. Please refer to the rated power of appliance and device. Refrigerator and rice cooker Suggest use 1200W voltage converter. But actual product may vary. Please refer to the rated power of appliance and device. Coffee and fan A 800W voltage converter is recommended. But actual product may vary. Please refer to the rated power of appliance and device. Review: There is definitely a transformer coil in there. - This product is rugged and well built, and there is definitely a transformer inside the case. But in my situation, that is the problem. I purchased this product to carry with me on a trip through Europe, and it is HEAVY. It probably weighs in excess of ten pounds, and I don't have that kind of weight space in my luggage, and it's too heavy to carry in a backpack. My apologies, because it looks like a great product, but I must return it. Review: feels heavy duty - very heavy definitely not made for travel, do not buy this if you're planning to carry this with you ## Features - 【Voltage Converter 220 to 110】 UMI 300 Watts Heavy Duty Step Down Voltage Transformer Converter. Step down voltage 220-230 volts to 100-120 volts. US to Europe voltage converter, which you can use your 110v or 120v electrical appliances in UK, France, Germany, Italy and other countries use 220-230v power. - 【Premium Quality】 The 220v to 110v converter is compact and functional, quiet and efficient. The UMI voltage converter includes built-in high-performance toroidal transformer, which uses toroid core and pure copper coils. With good transformer, the voltage converter has stable output and low consumption. - 【Multi-function】 UMI Power Converter 220V to 110V can be used with kinds of electrical appliances or devices up to 300 watts. Such as Heated Blanket, Refrigerator, Washing Machine, Curling Iron, Hair Straightener, Audio Streamer, Subwoofer, Robot Vacuum Cleaner, Bladeless Fan, Tea Maker and other kinds of household appliances or devices under 300watt. - 【Small & Safety】 With ultra-thin toroidal transformer, slim(21.5 * 15.3 * 5.2 cm/8.46 * 6 * 2.05 in), light weight(2.7 kg/6.0 lb), energy saving, quiet and high efficiency. The voltage converter includes built-in microcomputer control system, assure multiple protections with surge protection, over power protection, over-current protection, thermal protection, overload protection, short circuit protection. Make sure the total power consumption below 300watt. - 【Power Transformer】Energy saving, quiet and high efficiency. CE/CQC and ETL Certified! NOTICE: 300W rated. Please DO NOT overloaded, it will be alarming or even turn off automatically! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BK976TZV | | Best Sellers Rank | #405,546 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,782 in Power Converters | | Brand | UMI | | Color | White | | Customer Reviews | 4.3 out of 5 stars 7 Reviews | | Input Voltage | 220 Volts | | Item Weight | 6 Pounds | | Manufacturer | UMI | | Model Number | b5a7d9b3-7bad-4606-ad02-a8e71ef34925 | | Number of Outlets | 1 | | Output Voltage | 120 Volts | | Plug Format | uk | | Plug Type | uk | | Warranty Description | 2 year manufacturer | ## Product Details - **Brand:** UMI - **Color:** White - **Input Voltage:** 220 Volts - **Item Weight:** 6 Pounds - **Output Voltage:** 120 Volts ## Images ![Umi 300W step down voltage converter - Image 1](https://m.media-amazon.com/images/I/51bv4cVcMNL.jpg) ![Umi 300W step down voltage converter - Image 2](https://m.media-amazon.com/images/I/61boCMJYn9L.jpg) ![Umi 300W step down voltage converter - Image 3](https://m.media-amazon.com/images/I/610jusJ58cL.jpg) ![Umi 300W step down voltage converter - Image 4](https://m.media-amazon.com/images/I/61dLdLRb8GL.jpg) ![Umi 300W step down voltage converter - Image 5](https://m.media-amazon.com/images/I/71VrMxL4KoL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can this be used for two devices from the us at the same time or is one of the sockets only for japanese devices?** A: Hello. The UMI step down 220v to 110v voltage converter is designed for 110v US appliance and 100v Japanese device use in Europe. There's 2 outlets. 1 is 110v, which is used for US, Canadian or Taiwanese electric appliance. And the other 1 is 100v, which is used for Japanese device. You can use 2 or more appliance with extend power cord at the same time. Just make sure the total power consumption never exceed the power rating of the step down converter. Any questions with our UMI power transformer please feel free to contact us. Thank you for the trust and support! **Q: Does this use fan? Does it generate noise? I want to use it for audio equipment in quiet environment.** A: Hello. The UMI step down voltage 220v to 110v converter is designed for Japan 100v electric device and US 120v or Taiwan 110v appliance use in Europe, South America or Asia 220-240v power system. Does your fan work at 100-120v, and you will use it in the country where uses 220v or 230v? If yes, that's for sure you can use the 300w step down converter with the fan. And that won’t generate humming noise or any noise if the appliance’s power rating below 300w. Any questions with our UMI power converter please feel free to contact us. Thank you for your trust and support! **Q: Can it be used in greece for a usa sleeping apnea machine?** A: Hello. The UMI step down 220v to 110v voltage converter is designed for 100-120v appliance use in Europe. Its power rating is 500W, which should be used with appliances below 500 watts. How many power watts does your USA sleeping apnea machine use? That's for sure the 220v to 110v converter would work with the appliance if it's rated power below 500W. If it requires power over 500W, recommend choosing a step down converter with higher watts accordingly. Any questions with our UMI power converter please feel free to contact us. Thank you! **Q: Can I plug at the same 2 US devices rated 120v/65w each? Is it ok to plug 120v device to the 100v plug?** A: The device will power two devices of 65w each. As far as plugging a 120v device into the 100v plug, you should read the label on the 120v device to see what voltage range it operate, as it might be possible to damage it by giving it constant "brownout" conditions. You could use an outlet extender like this in the 120v outlet, and plug both devices into it. https://www.amazon.com/Philips-Splitter-Grounded-SPS1630W-37/dp/B07X3NT2Z7/ref=sr_1_3?crid=2RA07ONGQ4DDT&keywords=PHILIPS+3-Outlet+Extender&qid=1692620923&sprefix=philips+3-outlet+extender%2Caps%2C133&sr=8-3 ## Customer Reviews ### ⭐⭐⭐⭐⭐ There is definitely a transformer coil in there. *by T***P on August 25, 2023* This product is rugged and well built, and there is definitely a transformer inside the case. But in my situation, that is the problem. I purchased this product to carry with me on a trip through Europe, and it is HEAVY. It probably weighs in excess of ten pounds, and I don't have that kind of weight space in my luggage, and it's too heavy to carry in a backpack. My apologies, because it looks like a great product, but I must return it. ### ⭐⭐⭐⭐⭐ feels heavy duty *by W***R on September 12, 2023* very heavy definitely not made for travel, do not buy this if you're planning to carry this with you ## Frequently Bought Together - UMI Step Down Voltage 220v to 110v Converter, Travel Power Converter 220V to 110V 300W, Good Transformer for Overseas, Step Down Power Voltage Converter 220V to 110V - US to Europe Voltage Converter - UMI 2000W Step Down Voltage 220v to 110v Converter, Heavy Duty Power Converter, Power Transformer with Auto Mode for Large Capacity Equipment, Step Down 220v to 110v - US to Europe Voltage Converter - UMI 2400W Step Down 220v to 110v Voltage Converter, Heavy Duty 220V to 110V Power Converter with Auto Mode, Step Down Converter 220V to 110V - US to Europe Voltage Converter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/494399842-umi-300w-step-down-voltage-converter](https://www.desertcart.kr/products/494399842-umi-300w-step-down-voltage-converter) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-19*