1. Introduction
Thank you for choosing the VIFOCUFY 4V AC Adapter Power Cord. This product is designed to provide a reliable and safe power supply for your compatible WAHL trimmers and clippers. Please read this manual carefully before use to ensure proper operation and to maximize the lifespan of your adapter and device.
2. Product Overview
The VIFOCUFY 4V AC Adapter is a high-quality replacement or spare charger featuring robust construction and multiple safety protections. It is designed for convenience and durability.

Image 2.1: The VIFOCUFY 4V AC Adapter Power Cord, featuring a compact design and durable cable.
Key Features:
- UL Listed: Ensures safety and quality compliance.
- Multi-Protection Design: Includes safeguards against over-temperature, short circuit, over-voltage, over-current, and overload.
- Long Cable: Features a 6-foot (1.8 meter) power cable for extended reach.
- Durable Construction: Designed for long-lasting performance.

Image 2.2: Illustration of the 6-foot extra long power cord, providing ample length for convenient use.
3. Compatibility
This 4V AC Adapter is specifically designed for the following WAHL Trimmer and Clipper models:
- Trimmer Clipper Models: 79600-3301, 79600-2101, 8779, 8777, 9918D, 9918C (Note: 9818 & 9818L only for Round Plug, not for new models with Trapezoidal Plug), 9880L, 9937, 9854, 9854l, 9854-600, 9860, 9876, 9876l, 9766, 9867, 9865, 9888l, 9885-IL.
- AC Adapter Compatibility: 9880-116, 9918-6171, 97581-1305, 97581-405, 9860-700, 9867-300, 9880-100 Clipper PPL H12 79600-2101, 796002101, S003HU0420060, Gma04206ous, Gma042060us, Rhd10w060100 Shaver/Groomer Trimmer.
Important Note:
This power adapter supply is NOT compatible with WAHL Cordless Trimmers/Clippers or other models outside the list above. Please verify compatibility with your specific unit before use.

Image 3.1: Visual representation of the power cord and some compatible WAHL trimmer models.

Image 3.2: The charger connected to a WAHL cordless shaver, highlighting the round plug connector type.
4. Safety Information
Your safety is paramount. This AC adapter is designed with multiple safety features and is UL certified to ensure reliable and secure operation.
Safety Protections:
- Over Temperature Protection (OTP): Prevents overheating of the adapter.
- Short Circuit Protection (SCP): Protects against damage from short circuits.
- Over Voltage Protection (OVP): Safeguards against excessive voltage input.
- Over Current Protection (OCP): Prevents damage from excessive current flow.
- Over Load Protection (OLP): Protects against drawing too much power.

Image 4.1: Icons representing the five key safety protections integrated into the adapter.

Image 4.2: Comparison highlighting the UL Listed quality of VIFOCUFY chargers versus others.
5. Setup
Setting up your VIFOCUFY AC Adapter is straightforward:
- Ensure your WAHL trimmer or clipper is compatible with this 4V adapter (refer to Section 3).
- Plug the small barrel connector end of the adapter cable into the charging port of your WAHL device.
- Insert the AC plug of the adapter into a standard 100V-240V wall outlet or power strip.
- Confirm that the charging indicator on your WAHL device (if present) illuminates, indicating a successful connection.

Image 5.1: The AC adapter connected to a power strip and actively charging a WAHL shaver.
6. Operating Instructions (Charging)
Once connected, the adapter will begin charging your WAHL device. The charging process is automatic.
- Allow your device to charge fully for optimal battery life. Refer to your WAHL device's original manual for specific charging times.
- Once charging is complete, you may disconnect the adapter from the device and the power outlet.
7. Maintenance
To ensure the longevity and proper functioning of your VIFOCUFY AC Adapter:
- Keep the adapter and cable clean and dry. Avoid exposure to liquids.
- Do not bend or crimp the cable excessively, especially near the connectors, to prevent internal wire damage.
- Store the adapter in a cool, dry place when not in use.
- Avoid dropping the adapter or subjecting it to strong impacts.
8. Troubleshooting
If you encounter issues with your VIFOCUFY AC Adapter, consider the following:
Device Not Charging:
- Check Compatibility: Double-check that your WAHL device model is listed as compatible in Section 3.
- Secure Connection: Ensure both ends of the adapter are firmly plugged in – the barrel connector into the device and the AC plug into the power outlet.
- Power Outlet: Test the power outlet with another device to confirm it is functional.
- Cable Damage: Inspect the cable for any visible signs of damage, such as cuts or fraying. If damaged, discontinue use and replace.
Adapter Gets Warm During Charging:
- It is normal for power adapters to become slightly warm during operation, especially during charging.
- If the adapter becomes excessively hot to the touch, disconnect it immediately and contact customer support. This could indicate an issue with the adapter or the device being charged.
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | YNQX12G040100UL |
| Input Voltage | AC 100V-240V |
| Output Voltage | DC 4 Volt (Compatible with 4.2V) |
| Amperage | 1 Amps |
| Cable Length | 6 Foot / 1.8 Meter |
| Connector Type | Barrel Connector |
| Product Dimensions | 2.3 x 1.5 x 1 inches |
| Item Weight | 2.3 ounces |
| Color | Black |

Image 9.1: Detailed dimensions of the VIFOCUFY AC Adapter.
10. Warranty and Support
VIFOCUFY stands behind the quality of its products.
- Quality Assurance: This product comes with a 12-month quality assurance period.
- Customer Support: If you have any further questions, concerns, or require assistance, please contact VIFOCUFY customer support. We are committed to providing prompt support and solutions.