Introduction
This user manual provides detailed instructions for the safe and efficient operation of your BESTEK International Travel Adapter. Please read this manual thoroughly before using the product and retain it for future reference.
The BESTEK International Travel Adapter is designed for worldwide travel, offering a 3000W converter with built-in protection AC outlets, multiple USB ports (including USB-C PD3.0 and QC3.0), and a set of 5 international universal plugs. It is ideal for charging various electronic devices, including laptops, smartphones, tablets, and high-power appliances like hair dryers and curling irons, provided they are dual voltage or compatible with the local voltage.

Image: The BESTEK International Travel Adapter unit shown with its accompanying set of interchangeable international plug adapters (US, UK, AU, EU, JP).
Safety Precautions
- Important: This device is an adapter and a converter for high-power appliances (up to 3000W) but it is NOT a voltage converter for low-power electronics. Ensure your electronic devices (e.g., laptops, phones, cameras) are dual voltage (100V-240V) before plugging them into the AC outlet in a foreign country.
- Do not use with appliances exceeding the maximum power rating of 3000W.
- Do not immerse the adapter in water or expose it to excessive moisture.
- Keep out of reach of children.
- Do not disassemble or modify the adapter.
- Unplug the adapter from the wall outlet when not in use.
- Avoid using in extremely hot or humid environments.
- If the adapter sparks, smokes, or emits unusual odors, immediately unplug it and discontinue use.

Image: A visual representation illustrating the importance of voltage compatibility. It shows that a 220V input voltage can damage a 110V device if not properly converted, while dual-voltage devices (100V-240V) are compatible with various input voltages.
Package Contents
- BESTEK International Travel Adapter Unit
- US (Type B) Plug Adapter
- UK (Type G) Plug Adapter
- AU (Type I) Plug Adapter
- EU (Type E/F) Plug Adapter
- JP (Type A) Plug Adapter
- Travel Pouch
Product Features
- 3000W Power Converter: Supports high-power appliances like hair dryers and curling irons (ensure appliance is dual voltage or compatible).
- AC Outlets: Built-in protection for laptops and other devices.
- USB-C PD3.0 (30W Max): Fast charging for compatible devices like iPhone X/8/8 Plus, MacBook 2015/2016, HP Laptop, Mate Book, Nexus 5X/6P, LG G5, Pixel C, Samsung W700.
- 2 Smart Identify USB Ports (up to 2.4A each): Automatically detects and delivers optimal charging speed for smartphones and tablets.
- QC3.0 Port: Supports Quick Charge for compatible devices.
- Universal 100V~240V Input: Can be used worldwide.
- 5 International Adapters: UK (Type G), US (Type B), AU (Type I), EU (Type E/F), JP (Type A) plugs for compatibility in various regions.
- Compact and Portable Design: Measures 4.2 x 2.6 x 1.4 inches and weighs 7 oz (without packaging).

Image: The BESTEK International Travel Adapter highlighting its AC outlet and multiple USB ports (USB-C PD, standard USB, and QC3.0), demonstrating simultaneous charging capabilities for a laptop, smartphone, and tablet.
Setup
- Identify the Correct Plug Adapter: Based on your travel destination, select the appropriate international plug adapter (US, UK, AU, EU, or JP). Refer to the table below for common country compatibility.
- Attach the Plug Adapter: Align the chosen plug adapter with the main BESTEK adapter unit. Gently push and slide the adapter into place until it clicks securely.
- Connect to Power Outlet: Plug the assembled travel adapter into the wall outlet of your destination.
- Connect Your Devices:
- For high-power appliances (e.g., hair dryer, curling iron) that are dual voltage or compatible with local voltage, plug them into the AC outlet on the adapter.
- For USB-powered devices (smartphones, tablets, etc.), connect them to the appropriate USB-A or USB-C ports using their charging cables.

Image: A step-by-step visual guide demonstrating how to attach the interchangeable international plug adapters (US, AU, EU, UK) to the main BESTEK travel adapter unit by pushing them into place.
Plug Type Compatibility Guide
| Plug Type | Description | Common Regions/Countries |
|---|---|---|
| Type B (US) | Two flat parallel pins and a round grounding pin. | North America (USA, Canada, Mexico), Japan (also Type A), parts of South America. |
| Type G (UK) | Three rectangular pins in a triangular pattern. | United Kingdom, Ireland, Hong Kong, Singapore, Malaysia, UAE. |
| Type I (AU) | Two flat pins in a V-shape and a grounding pin. | Australia, New Zealand, China, Argentina. |
| Type E/F (EU) | Two round pins, often with a grounding hole or clips. | Most of Europe (Germany, France, Spain, etc.), Russia, South Korea. |
| Type A (JP) | Two flat parallel pins. | Japan (also Type B), North America (USA, Canada, Mexico). |
Note: This adapter does not include plugs for Italy, Switzerland, Brazil, Chile, and South Africa. Always verify the specific plug type and voltage requirements of your destination before travel.
Operating Instructions
Once the correct plug adapter is attached and the unit is plugged into a wall outlet, you can begin charging your devices.
- Charging USB Devices:
- Connect your USB-C compatible device to the PD (Power Delivery) port for fast charging.
- Connect your Quick Charge compatible device to the QC3.0 port for rapid charging.
- Connect other USB devices to the "AUTO 0-2.4A" smart identify USB ports. The adapter will automatically detect the optimal charging current for your device.
- Using AC Outlet for Appliances:
- Ensure your appliance (e.g., hair dryer, curling iron) is rated for dual voltage (100-240V) or is compatible with the local voltage of your travel destination.
- Plug the appliance directly into the AC outlet on the BESTEK adapter.
- The adapter provides up to 3000W of power for high-wattage appliances.

Image: The BESTEK Travel Adapter plugged into a wall outlet, simultaneously charging a MacBook, a tablet, an iPhone, a camera, a curling iron, and a hair dryer, illustrating its versatility for various electronic and high-power devices.
Maintenance
- Cleaning: Disconnect the adapter from the power outlet before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or aerosols.
- Storage: When not in use, store the adapter and its plug attachments in the provided velvet travel pouch in a cool, dry place away from direct sunlight and moisture.
- Inspection: Periodically inspect the adapter and plug attachments for any signs of damage, such as frayed wires, cracked casing, or bent pins. Do not use if damaged.

Image: The BESTEK Travel Adapter and its compact travel pouch placed next to a magazine and headphones, emphasizing its portability and ease of storage for travel.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging. | Adapter not properly plugged in; incorrect plug adapter used; device cable faulty; device not compatible with voltage. | Ensure adapter is firmly plugged into the wall outlet. Verify the correct plug adapter for the region. Try a different charging cable. Confirm your device is dual voltage (100-240V) if using the AC outlet in a foreign country. |
| Adapter sparks or smokes. | Overload; internal short circuit; incompatible appliance. | Immediately unplug the adapter. Do not use it again. Contact customer support. Ensure total wattage of connected devices does not exceed 3000W. |
| USB charging is slow. | Cable quality; device charging requirements. | Use original or high-quality charging cables. Ensure your device supports fast charging (PD or QC3.0) if using those specific ports. |
| Hair dryer/curling iron not working. | Appliance not dual voltage; appliance wattage too high. | Verify your appliance is dual voltage (100-240V) or compatible with the local voltage. Ensure its wattage does not exceed the adapter's 3000W limit. |
Specifications
- Model: MRJ6003+MRJ4001-WH
- Input Voltage: 100V-240V AC, 50/60Hz
- AC Output: Up to 3000W (Max)
- USB-C PD Output: 5V/3A, 9V/3A, 12V/2.5A, 15V/2A, 20V/1.5A (30W Max)
- USB-A Output (Smart Identify): 5V/2.4A (Max per port)
- QC3.0 Output: 5V/3A, 9V/2A, 12V/1.5A
- Total USB Output: 45W
- Dimensions: 4.2 x 2.5 x 1.4 inches (10.67 x 6.35 x 3.56 cm)
- Weight: 12 ounces (approx. 340g)
- Color: White
Warranty and Support
BESTEK offers a comprehensive warranty and dedicated customer support for your product.
- Warranty: 18-Months limited product warranty.
- Money Back Guarantee: 30 days money back guarantee.
- Customer Service: 24h*7d customer service is available to assist you with any questions or issues.
- For support, please visit the official BESTEK website or contact their customer service team directly.





