1. Introduction
The Hello Face Red Light Therapy Belt (Model L120) is designed to provide targeted red light and near-infrared light therapy for muscle and joint pain relief in both humans and pets. This portable device features 360 LED chips, offering 660nm red light and 850nm near-infrared light, with multiple operating modes and intensity levels for a customizable experience. Its design prioritizes safety, effectiveness, and portability, allowing for convenient use at home or on the go.
2. Important Safety Information
- Do not use on broken or damaged skin.
- Avoid direct contact with eyes.
- Keep away from children.
- Use only as directed.
- Consult a doctor before use if you have a medical condition or are pregnant.
- The Hello Face red light pad is neither a heating pad nor a massage pad. It produces mild warmth and does not have a massage function. Its therapeutic effects are primarily achieved through red light and infrared light, not heat or vibration.
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3. Product Features and Components
The Hello Face Red Light Therapy Belt (Model L120) is equipped with advanced features for effective therapy:
- 360 LED Chips: Features 120 professional LED lamp beads, each containing 3 chips (1x 660nm red light + 2x 850nm infrared light), totaling 360 LED chips for broad energy coverage.
- Dual Wavelengths: 660nm red light (visible) for sports injury recovery and skin health, and 850nm near-infrared light (invisible) for deep tissue penetration to relieve joint and spinal pain.
- Multiple Modes: Offers 3 modes: continuous light, 10Hz pulse mode, and 40Hz pulse mode. Pulse modes are designed to target pain points effectively.
- Adjustable Intensity: Features 5 lightness levels (L0-L4) to customize treatment intensity.
- Built-in Timer: Adjustable timer settings from 5 to 30 minutes in 5-minute increments.
- Enhanced Safety: Includes 8-layer temperature protection and a unique honeycomb structure to prevent direct skin contact with LED beads, minimizing overheating risk. Lens-focusing technology concentrates light penetration.
- Portability: Comes with an adjustable 35.4-inch elastic strap and a 16.9" x 8" mat size. The controller has a built-in 3000mAh battery for cordless, on-the-go use.
- Easy to Clean: Upgraded soft leather material is easy to clean with wet wipes.

Figure 1: Hello Face Red Light Therapy Belt and its packaging.

Figure 2: Illustration of the 360 LED chips, combining 660nm red light and 850nm near-infrared light for higher energy coverage.

Figure 3: Comparison highlighting the ultra skin-friendly spandex lining and honeycomb design for enhanced safety and comfort.
4. Setup Instructions
- Unpack: Carefully remove the Red Light Therapy Belt and all accessories from the packaging.
- Connect Controller: Connect the therapy pad to the wired controller. Ensure the connection is secure.
- Power Source:
- Option 1 (Battery Powered): The controller has a built-in 3000mAh battery for cordless use. Ensure the controller is charged.
- Option 2 (Wall Outlet): Connect the controller to a wall outlet via a 5V, 2A adapter (not included).
- Option 3 (Power Bank): Connect the controller to a 5V, 2A power bank (not included) for portable use.
- Placement: Position the therapy pad on the desired area of the body (e.g., waist, back, shoulders, hips, legs). Use the adjustable elastic strap to secure it comfortably. An extension strap is included for larger areas.

Figure 4: Three power options for the therapy belt: internal battery, wall adapter, or external power bank.

Figure 5: Ensure the pad is connected to the OUTPUT port on the controller for proper function.
Video 1: Hello Face Red Light Therapy Belt Unboxing Video. This video demonstrates the unboxing and initial setup of the Hello Face Red Light Therapy Belt, showing the components and how to connect them.
5. Operating Instructions
- Power On: Press the power button on the controller to turn on the device. The default setting is full light (660nm + 850nm) at energy level 3 for 30 minutes.
- Select Mode: Press the 'M' button to cycle through the light modes:
- Continuous Light: For general relaxation and pain relief.
- 10Hz Pulse Mode: For medium soothing and accelerating circulation, suitable for sports injuries.
- 40Hz Pulse Mode: For deeper tissue penetration, targeting specific pain points.
- Adjust Intensity: Use the '+' and '-' buttons to adjust the light intensity from L0 (lowest) to L4 (highest).
- Set Timer: Use the timer button to select the desired treatment duration: 5, 10, 15, 20, 25, or 30 minutes. The device will automatically shut off after the selected time.
- Power Off: Press and hold the power button to turn off the device.

Figure 6: The therapy belt is applicable to multiple body parts for targeted relief.

Figure 7: Explanation of the three available light modes and their therapeutic effects.
Video 2: Quick look at the Hello Face Red Light Therapy Belt. This video provides a brief overview of the product's features and operation, including how to turn it on and adjust settings.
Video 3: What to Expect With this Red Light Therapy Belt? This video demonstrates the product's functionality, including how to adjust the light modes and timer, and shows it being worn on the stomach.
6. Usage Guidelines
- Frequency: Use the device 1-2 times per day for up to 4 weeks or more, as needed.
- Duration: Each session should be limited to 15-30 minutes on one area before moving the device to the next treatment area. Avoid falling asleep with the pad on.
- Direct Contact: For maximum efficacy, use the pad directly against bare skin. The soft spandex lining is comfortable and the honeycomb design prevents direct contact with LED beads.
- Target Areas: Effective for relieving pain in joints and muscles across the waist, back, shoulders, hips, arms, and legs.

Figure 8: The device features a timing function (5-30 minutes) and a memory function that restores previous settings.
7. Maintenance
- Cleaning: After each use, clean the pad with a damp cloth to wipe off any sweat or residue. The upgraded soft leather is designed for easy cleaning.
- Storage: Store the device in a cool, dry place. It is recommended to roll the pad rather than folding it to preserve the LED lights.
- Charging: Recharge the controller's built-in battery as needed. A 2-hour charge provides approximately 60 minutes of use at maximum power.

Figure 9: The upgraded soft leather material allows for easy cleaning with wet wipes.
8. Troubleshooting
- Device Not Turning On:
- Ensure the pad is correctly connected to the OUTPUT port of the controller (refer to Figure 5).
- Check if the controller's battery is charged or if it's properly connected to a power source (wall adapter or power bank).
- Infrared Lights Not Visible: The 850nm near-infrared light is invisible to the human eye. If the device is set to infrared-only mode, the lights will appear off, but the device is still functioning.
- Reduced Effectiveness: Ensure the pad is used directly against bare skin for optimal light penetration. Fabric or other barriers can reduce efficacy.
9. Specifications
- Product Dimensions: 16.93 x 8.66 x 0.33 inches
- Item Weight: 1.17 Pounds (0.53 Kilograms)
- Item Model Number: L120
- Batteries: 1 Lithium Ion battery required (included in controller)
- Brand: Hello Face
- Material: Leather, Spandex
- Special Features: Lightweight, Overheat Protection, Portable, Timer
- Manufacturer: Guangzhou Ahead Intelligent Technology Co., Ltd.
10. Warranty and Customer Support
Hello Face provides a 1-year warranty for the Red Light Therapy Belt (Model L120), covering any quality issues. For questions or support, please contact our 24/7 customer service.




