--- product_id: 1595386 title: "ROCKSTONE POWER 5000 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: "¥65300" currency: JPY in_stock: true category: "Rockstone Power" url: https://www.desertcart.jp/products/1595386-rockstone-power-5000-watt-voltage-converter-transformer-heavy-duty-step store_origin: JP region: Japan --- # 5000W heavy-duty power 3-mode simultaneous output full circuit breaker protection ROCKSTONE POWER 5000 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:** ¥65300 **Availability:** ✅ In Stock ## Summary > 🌍 Power your global lifestyle with unstoppable energy! ## Quick Answers - **What is this?** ROCKSTONE POWER 5000 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?** ¥65300 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1595386-rockstone-power-5000-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 - • **Built to Endure:** Robust metal casing and heavy-duty insulated cord ensure industrial-grade durability. - • **Trusted by the Best:** Proud supplier to Tesla and US Military since 2001 — reliability you can count on. - • **Safety First, Always:** Full range fuse and overcurrent protection with CE certification for peace of mind. - • **Power Through Borders:** Seamlessly step up/down voltage between 110-240V for global compatibility. - • **Triple Output Flexibility:** Simultaneous 110V USA socket, 220V universal socket, and 5V USB port keep all devices charged. ## Overview The ROCKSTONE POWER 5000 Watt Voltage Converter Transformer is a heavy-duty, CE-certified step up/down power converter designed for worldwide use. It supports simultaneous 110V, 220V, and 5V USB outputs, features full circuit breaker and overcurrent protection, and comes with a durable metal casing and insulated power cord. Backed by a 3-year warranty and trusted by Tesla and the US Military, it’s engineered for professionals who demand reliable, versatile power solutions across borders. ## 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 5000 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? 5000 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. ## Features - 5000 Watts Heavy Duty Step Up Step Down Voltage Transformer Power Converter. Used in 110 Volts and 220V Countries. Step Up Voltage from 110-120 Volts to 220-240 Volts. Step Down Voltage from 220-240 Volts to 110-120 Volts. - Patented Simultaneous 3-Mode Output: 110V USA Output Socket / 220V Universal Output Socket / 5V USB Port. CE Certified. 3-Year Manufacturer's Limited Warranty. Metal Casing. Full Range Fuse Protection. Full Range Over Current Protection. - 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. - 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; 5,000 transformer can be only be used with an appliance that uses up to 3,300 Watts that is to prevent damage from the transformer itself and the appliance being used. - Package Contents: Rockstone Power 5000 Watt Heavy Duty Voltage Transformer Converter, Hardwired Heavy Duty Insulated Power Cord with USA Grounded 3-Prong Plug, American to European Grounded Schuko Wall Outlet Plug Adapter, 2 PCS Spare Fuses, and Instruction Manual. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00J0CF8W4 | | Best Sellers Rank | #79,608 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #296 in Power Converters | | Brand Name | ROCKSTONE POWER | | Customer Reviews | 4.2 4.2 out of 5 stars (3,407) | | EU Spare Part Availability Duration | 3 Years | | Global Trade Identification Number | 00617529014991 | | Included Components | Power Converter;American to European Grounded Schuko Wall Outlet Plug Adapter;2 PCS Spare Fuses;Instruction Manual | | Item Weight | 26 Pounds | | Manufacturer | E Depot Express | | Minimum Frequency | 50 Hz | | Model | 5000 Watt | | Mounting Type | Portable | | Part Number | 5000 Watt | | Power Source | Corded Electric | | Specification Met | CE | | UPC | 617529014991 | | Unit Count | 1.0 Count | | Warranty Description | 3 year manufacturer | ## Product Details - **Brand:** ROCKSTONE POWER - **Item Weight:** 26 Pounds - **Mounting Type:** Portable - **Power Source:** Corded Electric - **Specification Met:** CE ## Images ![ROCKSTONE POWER 5000 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/719fmAixRvL.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. ## Frequently Bought Together - ROCKSTONE POWER 5000 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] - Yinleader 5000W PRO Voltage Transformer Converter Step Up/Down AC 110V/120V to 220V/240V or 220V/240V to 110V/120V Power Converter w/US Standard Power Cord,Circuit Breaker Protection - Unidapt US Travel Plug Adapter, EU,AU,UK,NZ,CN,in to USA (Type B), Grounded 3 Prong USA Wall Plug, EU to US Travel Adaptor and Converter, Power Outlet Charger (1-Pack) --- ## 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.jp/products/1595386-rockstone-power-5000-watt-voltage-converter-transformer-heavy-duty-step](https://www.desertcart.jp/products/1595386-rockstone-power-5000-watt-voltage-converter-transformer-heavy-duty-step) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-06-18*