1. Introduction
The TESSAN Universal Travel Adapter is an all-in-one solution designed to meet your charging needs while traveling internationally. It features a universal AC outlet, 2 USB-A ports, and 3 USB-C ports, allowing you to charge up to 6 devices simultaneously. This compact and portable adapter supports various plug types, making it compatible with electrical outlets in numerous countries worldwide.

Figure 1: TESSAN Universal Travel Adapter overview with port details.

Figure 2: Compact dimensions and port configuration.
2. Safety Information and Warnings
IMPORTANT: This product does NOT convert voltage. Ensure your device is appropriately rated for the mains supply voltage of the country you are in. If they are different, an appropriate transformer must be used.
- Each country has its own regulations regarding travel adapters; please check local requirements before use.
- Do not store the unit in direct sunlight, at high temperatures, in high humidity, or in dusty environments.
- Do not use the adapter with wet hands.
- This equipment is not intended for use by children. Keep children and pets at a safe distance.
- Always turn off the power before removing the adapter from a socket or disconnecting devices.
- This travel plug is only suitable for devices with dual voltage or global devices with an input voltage range of 100 to 250 V. Voltage conversion (transformation) or mains frequency change is not performed by this socket adapter.
3. Product Overview
The TESSAN Universal Travel Adapter features a thoughtful design for ease of use and broad compatibility.
Components:
- Slider: Used to extend and retract the various regional plugs.
- LED Indicator: Illuminates when the adapter is powered on.
- Universal Socket: Accommodates various plug types from around the world.
- Various Plugs: Integrated retractable plugs for USA/Australia/NZ, UK, and Europe.
- Smart USB-A Ports (x2): For charging standard USB devices.
- Smart USB-C Ports (x3): For faster charging of compatible USB-C devices.
Video 1: Product demonstration showcasing universal plug functionality and charging capabilities.
4. Specifications
| Feature | Detail |
|---|---|
| Model | 633FV-GR |
| AC Rating | 100V-250V~10A 50/60Hz |
| Max Power | 1100W at 110V / 2500W at 250V |
| USB-A Output | 5V/2.4A (Total 12W), each USB-A 2.4A (Max) |
| USB-C Output | 5V/3.0A, 15W (Single USB Max Output) |
| Total USB Output | 5.0V-5.6A 28.0W Max |
| USB Ports Number | 5 (2 USB-A, 3 USB-C) |
| AC Outlets Number | 1 (Universal Socket) |
| Replaceable Fuse | 250V 10A (one spare fuse included) |
| Overload Protection | Yes |
| Synchronous Rectification Technology | Yes |
| Grounding | Standard Grounding |
| Dimensions | 5 x 5.3 x 7.1 cm |
| Certification | CE, RoHS |
| Origin | Mainland China |
Compatible Devices:
The product is compatible with USB electronic devices such as cameras, smartphones, tablets, portable game consoles, Bluetooth speakers, power banks, etc. It can also be used with some 3-pole grounded devices that have low rated power. Always check the safety data sheet or data plate on your devices for power requirements before plugging them in.
Supported Countries (Plug Types):
USA, UK, EU, Australia, China, Canada, Ireland, Thailand, Japan, Italy, Colombia, Maldives, and many more.
5. Setup and Usage
5.1. Selecting the Correct Plug
This travel adapter features retractable plugs for different regions. To use, gently press the slider corresponding to the desired region and slide it to the end until it clicks into position. The LED indicator will light up when properly connected to a power source.

Figure 3: Adapter configured for EU, USA, UK, and AUS plug types.
Note: Only one plug can be extended and used at a time. Other plugs will be automatically locked to prevent accidental deployment.
5.2. Charging Devices
Once the adapter is plugged into a wall outlet, you can connect your devices:
- AC Outlet: Plug your device's power cord into the universal AC socket.
- USB-A Ports: Connect your USB-A charging cables to the two USB-A ports.
- USB-C Ports: Connect your USB-C charging cables to the three USB-C ports for faster charging.

Figure 4: Charging devices via USB-C and USB-A ports.

Figure 5: Multiple devices charging simultaneously.
5.3. Retracting the Plug
To retract the extended plug, simply press the slider and slide it back until it clicks into its stored position.
5.4. Replacing the Fuse
The adapter includes a replaceable 10A fuse for overload protection, with a spare fuse provided. If the adapter stops working due to an overload, you may need to replace the fuse.
- Ensure all devices are disconnected from the adapter and the adapter is unplugged from the wall outlet.
- Locate the fuse compartment (typically labeled 'FUSE 10A') on the side of the adapter.
- Gently slide or pry open the fuse compartment to remove the old fuse.
- Insert the spare fuse (or a new 250V 10A fuse) into the compartment.
- Close the fuse compartment securely.

Figure 6: Location of the replaceable fuse.
6. Maintenance
- Keep the adapter clean and dry. Wipe with a soft, dry cloth.
- Avoid exposing the adapter to direct sunlight, extreme temperatures, high humidity, or dusty environments.
- Do not use harsh chemicals or abrasive cleaners on the adapter.
- Store the adapter in a cool, dry place when not in use.
7. Troubleshooting
- Adapter not powering on: Check if the adapter is securely plugged into the wall outlet. Verify that the LED indicator is lit. If not, check the fuse and replace it if necessary (refer to section 5.4).
- Devices not charging: Ensure your devices are properly connected to the USB ports or AC outlet. Confirm that your devices are compatible with the adapter's voltage and power output.
- Plug not extending/retracting: Ensure no other plugs are partially extended, as the locking mechanism prevents multiple plugs from being deployed simultaneously. Apply gentle, firm pressure on the slider.
8. Frequently Asked Questions (FAQ)
- Q: What kind of socket does it have?
- A: It has an international plug adapter type, supporting various global standards including US, EU, UK, and AUS.
- Q: Does this adapter convert voltage?
- A: No, this adapter does not convert voltage. It is designed for devices with dual voltage (100-250V). If your device is single voltage, you will need a separate voltage converter.
- Q: Is this compatible for Indian sockets?
- A: The adapter supports a wide range of countries including US, EU, UK, AUS, Japan, etc. Please verify local socket types and voltage requirements for India before use, as specific Indian socket types (Type D/M) may require a different adapter.
- Q: Does this work with Japanese sockets?
- A: Yes, Japan (Type A/B) is listed among the compatible countries.
9. Warranty and Support
9.1. Warranty
TESSAN warrants all products to be of high quality in material, craftsmanship, and service for 18 months from the date of purchase.
9.2. Support
If you encounter any issues with your product or require assistance, please refer to the following contact information:
- For purchases made through TESSAN's authorized resellers: Please contact them directly for support.
- For purchases made through TESSAN's online store: Please contact the store directly.
European Representative:
- Company: YH Consulting Limited
- Address: C/O YH Consulting Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX, UK
- Email: H2YHUK@gmail.com
- Tel: +44 07514-677868
- Company: E-CrossStu GmbH
- Address: Mainzer Landstr.69, 60329 Frankfurt am Main, Germany
- Email: E-crossstu@web.de
- Tel: +4969332967674
Manufacturer:
- Company: Dongguan Best Travel Electronics Co., Ltd.
- Address: Building No.6, Tonggu Middle Road, Shangjiao District, Chang'an Town, Dongguan City, Guangdong Province, China
- Email: info@worldplug.net





