--- product_id: 7465100 title: "ROCKSTONE POWER 1000 Watt Voltage Converter Transformer - Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter - Circuit Breaker Protection – DC 5V USB Port - CE Certified [3-Year Warranty]" brand: "rockstone power" price: "€ 276.43" currency: EUR in_stock: true reviews_count: 8 category: "Rockstone Power" url: https://www.desertcart.hr/products/7465100-rockstone-power-1000-watt-voltage-converter-transformer-heavy-duty-step store_origin: HR region: Croatia --- # 1000W heavy-duty power 5V USB charging port Dual 110-120V & 220-240V sockets ROCKSTONE POWER 1000 Watt Voltage Converter Transformer - Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter - Circuit Breaker Protection – DC 5V USB Port - CE Certified [3-Year Warranty] **Brand:** rockstone power **Price:** € 276.43 **Availability:** ✅ In Stock ## Summary > 🌍 Power your world, anywhere, anytime — without compromise! ## Quick Answers - **What is this?** ROCKSTONE POWER 1000 Watt Voltage Converter Transformer - Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter - Circuit Breaker Protection – DC 5V USB Port - CE Certified [3-Year Warranty] by rockstone power - **How much does it cost?** € 276.43 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/7465100-rockstone-power-1000-watt-voltage-converter-transformer-heavy-duty-step) ## Best For - rockstone power enthusiasts ## Why This Product - Trusted rockstone power brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerhouse Performance:** Handles up to 1000 watts for heavy-duty appliances without breaking a sweat. - • **Built to Last & Protect:** Robust metal casing with circuit breaker and fuse protection ensures safety and durability on every use. - • **Triple Output Convenience:** Simultaneous 5V USB, US 120V, and universal 220V sockets keep all your essentials charged and ready. - • **Global Voltage Flexibility:** Seamlessly step up or down between 110-120V and 220-240V to power your devices worldwide. - • **Travel-Ready & Warranty-Backed:** Includes adapters, spare fuses, and a 3-year warranty—your reliable companion for home or abroad. ## Overview The ROCKSTONE POWER 1000 Watt Voltage Converter Transformer is a heavy-duty, dual voltage step-up/step-down converter designed for global use. Featuring a robust metal casing, circuit breaker protection, and a patented 3-mode output including a 5V USB port, it supports a wide range of appliances with up to 1000 watts of power. CE certified and backed by a 3-year warranty, it comes with essential adapters and spare fuses, making it the ultimate reliable power solution for professionals and travelers alike. ## Description ROCKSTONE POWER? takes pride in being an industry leader in Quality, Technology and Innovation, our factory is the global leader and one of the largest manufacturers in the industry. Product Features 1000 Watts Heavy Duty Step Up/Down Voltage Transformer Converter. Step Up Voltage from 110-120 Volts to 220-240 Volts. Or Step Down Voltage from 220-240 Volts to 110-120 Volts. Patented Simultaneous 3-Mode Output: 5V USB Port / 120V USA Output Socket / 220V Universal Output Socket. Metal Casing. ON/OFF Switch with LED indicator light. Hardwired heavy-duty insulated power cord with USA Grounded 3-Prong Plug. CE Certified. Full Range Fuse Protection. Full Range Over Current Protection. Purchase Guide ROCKSTONE POWER? Heavy Duty Step Up/Down Transformers aka Voltage Converters, Voltage Transformers, Power Converters, Step Up Converters, Step Down Converters, Dual Voltage Transformers, are meant for worldwide use for all electronics, heavy duty machines, or household & industrial applications. For safety reasons, it?s recommended to use a Voltage Converter / Transformer that's max watts is at least 50% higher than your appliance. For example, if your appliance is rated at 1000 watts, you need to buy a Transformer with a max power of at least 1500 watts or greater. Some appliances, such as heating appliances, power tools, motors, laser printers and TVs, require 2-4 times more watts at start up than the printed rated wattage. What's in the Box - ROCKSTONE POWER? 1000 Watt Heavy Duty Step Up/Down Voltage Transformer Converter - American to European Grounded Schuko Wall Outlet Plug Adapter - 2 PCS Spare Fuses - Instruction Manual Warranty Manufacturer 3-year limited warranty. Please contact us via email if you have any questions. Review: An Excellent Power Converter for My German Beer Fridge! - I recently purchased the Rockstone Power 1000W power converter to use with my German beer fridge here in the US, and it has exceeded my expectations. The setup was straightforward, and the unit is robust and well-built. It effortlessly handles the power conversion, ensuring my fridge runs smoothly without any hiccups. The fan is quiet, and the converter stays cool even during extended use. It's clear that this product is designed with quality in mind. If you're looking for a reliable power converter, especially for high-power appliances, the Rockstone Power 1000W is an excellent choice. Highly recommended! Review: Good product, but ONLY transforms the voltage, NOT frequency (50/60Hz) - This is a really good product that worked well to transform my camera lighting equipment (from the USA) to the appropriate voltage when I was in the netherlands. The netherlands calls for 230V, so I set the pin on the back of the unit to 240V. Now, a SUPER important thing to note about this unit is that IT ONLY TRANSFORMS THE VOLTAGE. You must read the device you plan on plugging into the converter to make sure that it will transform to either 50 or 60 Hz. If the device says that it only works with 110V/60Hz (as is how it is in the USA), then you MUST buy an appropriate power strip that will also convert the Hz to the appropriate one for the country you visit, as well as handle the wattage that your appliance uses. Most appliances now-a-days (at least most that I've encountered) will have either a built in transformer and/or inverter that will convert to 110-240v + 50/60hz. You do not need this device if all of the devices you use have this written on the product (you can usually read/find this information close to or near where you plug in your device). If your device ONLY states that it takes 110V/60hz (or whatever country you purchased your device in and their power specifications), again you will need to purchase a power strip that will also convert the Hz to the appropriate Hz that you will be visiting. I learned this information the hard way when I had purchased this device and had plugged in a cheap north american power strip that only handled 110v/60hz, and blew a fuse and destroyed the power strip. ## Features - Versatile Voltage Transformation: Seamlessly convert voltages with this dual-purpose power solution. Effortlessly transform 110V to 220V and vice versa, or step up from 120V to 240V and step down from 240V to 120V. Ideal for a range of appliances, this 220v to 110v converter, and 110v to 220v converter ensures your devices operate smoothly in different voltage environments. Safely link multiple devices using a power strip or extension cord, ensuring total wattage within the converter's limit. - Universal Compatibility & USB Convenience: Equipped to power a variety of devices, this voltage converter features a dedicated 5V USB port for charging mobile devices. With a 110-120V US outlet and a 220-240V universal socket, it's a perfect step-down transformer 220v to 110v and step-up transformer 110v to 220v, catering to both domestic and international electronics. - Optimal Safety & Enhanced Durability: Enclosed in a robust metal casing, our voltage converter 220 to 110 and 110 to 220 guarantees maximum safety with circuit breaker and fuse protection. Designed to ensure optimal device usage, this converter aids in prolonging appliance life, making it an essential power converter for home and travel. Choose this converter with a wattage rating 50% above your appliance for longevity and optimal performance in power transformer and voltage converter uses. - RockStone Power proudly supports the United States Military since 2001, and have became a proud supplier for Tesla Inc. since 2018. Shipping is available to all Overseas Military APO/FPO/DPO addresses. - Comprehensive Package & Warranty Assurance: This all-in-one package includes the Rockstone Power 1000W Voltage Converter Transformer, a USA power cord, European adapter, spare fuses, and a user-friendly manual. Backed by a 3-Year Warranty, it's the ultimate solution for converting voltages like 120v to 240v step up transformer and voltage converter 110v to 220v. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CLY1WPU | | Best Sellers Rank | #121,508 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #465 in Power Converters | | Brand | ROCKSTONE POWER | | Brand Name | ROCKSTONE POWER | | Current Rating | 9.09 A | | Customer Reviews | 4.4 out of 5 stars 692 Reviews | | EU Spare Part Availability Duration | 3 years | | Global Trade Identification Number | 00617529014595 | | Included Components | Power converter | | Item Weight | 13 pounds | | Manufacturer | E Depot Express | | Minimum Frequency | 50 hertz | | Model | 1000 watt | | Mounting Type | Fixed Mount | | Number of Items | 1 | | Part Number | 1000 watt | | Power Source | Corded Electric | | Specification Met | CE | | UPC | 617529014595 617529014465 | | Unit Count | 1 Count | | Warranty Description | 3 year manufacturer | ## Product Details - **Brand:** ROCKSTONE POWER - **Current Rating:** 9.09 A - **Mounting Type:** Fixed Mount - **Power Source:** Corded Electric - **Specification Met:** CE ## Images ![ROCKSTONE POWER 1000 Watt Voltage Converter Transformer - Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter - Circuit Breaker Protection – DC 5V USB Port - CE Certified [3-Year Warranty] - Image 1](https://m.media-amazon.com/images/I/71F+wzxNyQL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How would i change 220v to 110v? i set the 2 prong plug at the back of machine to 110v. what should i do at the front?** A: Since you plan to use your appliances (200V-240V) in the United States, please make sure to select 110V from the Input Voltage Selector on the back of the ROCKSTONE POWER Voltage Converter Transformer (The factory default setting is on 240V). Plug the power cord into the U.S. wall/power outlet and switch on the Voltage Converter Transformer without plugging in any appliances. The Power Source indicator red light will turn on. Then, plug your appliance's plug into the 220V output outlet located on the front panel (please use a plug adapter if needed) and switch on your appliance. **Q: What is the output Hz?** A: so if I use a double ended bulb 1200w 90 hz it will work perfectly too ?? **Q: How to install fuses?** A: The fuse holder is on the back of the transformer (above the power cord), please loosen the screw with a screwdriver to replace the fuse if needed. (Package includes 2pcs spare fuses). Please make sure that the fuse and/or the fuse holder is tightened securely when replaced. **Q: Can this work with 220Watts wet grinder purchased from India?** A: 220 watts is probably the running current of the wet grinder... the start up current may be higher. I would try the 1000 watt unit. And you can exchange it if it has trouble with start up for the 2000 watt model which should have more than enough capacity. ## Customer Reviews ### ⭐⭐⭐⭐⭐ An Excellent Power Converter for My German Beer Fridge! *by R***R on August 5, 2024* I recently purchased the Rockstone Power 1000W power converter to use with my German beer fridge here in the US, and it has exceeded my expectations. The setup was straightforward, and the unit is robust and well-built. It effortlessly handles the power conversion, ensuring my fridge runs smoothly without any hiccups. The fan is quiet, and the converter stays cool even during extended use. It's clear that this product is designed with quality in mind. If you're looking for a reliable power converter, especially for high-power appliances, the Rockstone Power 1000W is an excellent choice. Highly recommended! ### ⭐⭐⭐⭐⭐ Good product, but ONLY transforms the voltage, NOT frequency (50/60Hz) *by G***G on May 11, 2017* This is a really good product that worked well to transform my camera lighting equipment (from the USA) to the appropriate voltage when I was in the netherlands. The netherlands calls for 230V, so I set the pin on the back of the unit to 240V. Now, a SUPER important thing to note about this unit is that IT ONLY TRANSFORMS THE VOLTAGE. You must read the device you plan on plugging into the converter to make sure that it will transform to either 50 or 60 Hz. If the device says that it only works with 110V/60Hz (as is how it is in the USA), then you MUST buy an appropriate power strip that will also convert the Hz to the appropriate one for the country you visit, as well as handle the wattage that your appliance uses. Most appliances now-a-days (at least most that I've encountered) will have either a built in transformer and/or inverter that will convert to 110-240v + 50/60hz. You do not need this device if all of the devices you use have this written on the product (you can usually read/find this information close to or near where you plug in your device). If your device ONLY states that it takes 110V/60hz (or whatever country you purchased your device in and their power specifications), again you will need to purchase a power strip that will also convert the Hz to the appropriate Hz that you will be visiting. I learned this information the hard way when I had purchased this device and had plugged in a cheap north american power strip that only handled 110v/60hz, and blew a fuse and destroyed the power strip. ### ⭐⭐⭐⭐⭐ Love this product *by N***K on October 17, 2024* Oh wow, i thought i have to throw away the stuff that i got from overseas, but this transformer helped to use those useless products in US. It has step up and step down features and very easy to use. You can also plug the usb and charge a phone. Sturdy design and have not seeing it give any problems. Been using it for more than 2 years. ## Frequently Bought Together - ROCKSTONE POWER 1000 Watt Voltage Converter Transformer - Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter - Circuit Breaker Protection – DC 5V USB Port - CE Certified [3-Year Warranty] - 4 Pack Universal Adapter, Europe to US Plug Travel Adapters (White) --- ## 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.hr/products/7465100-rockstone-power-1000-watt-voltage-converter-transformer-heavy-duty-step](https://www.desertcart.hr/products/7465100-rockstone-power-1000-watt-voltage-converter-transformer-heavy-duty-step) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-09*