1. Product Overview
The Comfytemp 5000mAh Portable Red Light Therapy Belt is a versatile, wearable device designed for targeted red and near-infrared light therapy. It features a cordless design with a powerful rechargeable battery, offering convenience and flexibility for use on various body areas.
Key Features:
- 5000mAh Cordless Design: Enjoy 80-250 minutes of use on a full charge, delivering strong 13W light intensity comparable to wired belts. Ideal for use anywhere, anytime.
- Red & Infrared Light Therapy: Combines visible 660nm red light for surface treatment and invisible 850nm near-infrared light for deeper muscle and joint targeting. Light irradiance up to 113.5 mW/cm² at 0 inch.
- Adjustable Fit: Includes an extension strap (20''x4'') to fit waist sizes up to 70''. Velcro straps ensure a snug but comfortable fit for waist, abdomen, back, hips, and legs.
- Customizable Settings: Offers 4 light modes and 9 adjustable intensity settings. Control via integrated buttons or a dedicated app with a 5-30 minute auto-off timer.

2. Setup and First Use
Unboxing and Components:
Upon opening the package, ensure all components are present:
- Comfytemp Red Light Therapy Belt
- Extension Strap (20''x4'')
- Power Adapter
- User Manual

Charging the Device:
- Connect the power adapter to the charging port on the control panel of the belt.
- Plug the adapter into a power outlet.
- Allow the device to fully charge before first use. A full charge provides 80-250 minutes of operation depending on the intensity setting.

Wearing the Belt:
- Place the red light therapy belt directly on the desired body area (waist, abdomen, lower back, hips, or legs).
- Secure the belt using the Velcro straps. Ensure a snug but comfortable fit.
- If needed, attach the extension strap to accommodate larger waist sizes up to 70 inches.

3. Operating Instructions
Powering On/Off:
Press and hold the power button on the control panel to turn the device on or off.
Selecting Light Modes:
The belt offers 4 light modes:
- Red + NIR (660nm + 850nm): Combines both red and near-infrared light for comprehensive therapy.
- NIR (850nm): Near-infrared light only, targeting deeper tissues. (Invisible to the naked eye)
- Red (660nm): Red light only, focusing on surface-level benefits.
- Pulse (660nm + 850nm): Both red and near-infrared light delivered in pulses.
Use the 'M' (Mode) button on the control panel or the app to cycle through these modes.
Adjusting Intensity:
There are 9 adjustable intensity settings. For beginners, start with lower settings and gradually increase as comfortable. Adjust intensity using the '+' and '-' buttons on the control panel or via the app.
Using the App Control:
- Download and log in to the Comfytemp App on your smartphone.
- Power on the therapy belt.
- Open Bluetooth on your phone and pair with the therapy belt through the app.
- Customize your therapy session: select light mode, adjust intensity, and set the auto-off timer (5-30 minutes).
Warm Tip: The app is an extra add-on designed to enhance your experience.

4. Maintenance and Care
To ensure the longevity and optimal performance of your Comfytemp Red Light Therapy Belt, follow these maintenance guidelines:
- Cleaning: Gently wipe the surface of the belt with a soft, damp cloth. Do not immerse the device in water or use harsh cleaning agents.
- Storage: Store the belt in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: Recharge the battery regularly, even if not in frequent use, to maintain battery health. Avoid fully depleting the battery for extended periods.
- Handling: Avoid bending or creasing the light panel excessively to prevent damage to the LEDs.
5. Troubleshooting
If you encounter any issues with your therapy belt, refer to the following common troubleshooting tips:
- Device not turning on:
- Ensure the battery is fully charged.
- Verify that the power button is pressed and held for a few seconds.
- Lights not visible in NIR mode:
- The 850nm Near-Infrared (NIR) light is invisible to the naked eye. This is normal operation.
- If Red+NIR mode is selected and only red lights are visible, ensure the device is functioning correctly by checking the control panel or app.
- App not connecting:
- Ensure Bluetooth is enabled on your smartphone.
- Make sure the therapy belt is powered on and within range of your phone.
- Restart the app and/or the therapy belt.
- Reduced battery life:
- Battery life varies with intensity settings; higher settings consume more power.
- Ensure the device is fully charged before each session.
- Over time, rechargeable batteries may experience reduced capacity.
For further assistance, please contact Comfytemp customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Model | 50''x7'' |
| Battery Capacity | 5000mAh Lithium Polymer |
| Power Output | 13W (max) |
| Light Wavelengths | 660nm (Red Light), 850nm (Near-Infrared Light) |
| Light Irradiance | Up to 113.5 mW/cm² (at 0 inch) |
| Waist Size Compatibility | Up to 70'' (with extension strap) |
| Control Options | Integrated buttons, Mobile App |
| Auto-off Timer | 5-30 minutes (adjustable via app) |
| Package Dimensions | 7.44 x 6.02 x 4.02 inches |
| Weight | 1.17 Pounds |
| Manufacturer | Shenzhen Yicai Health Technology Co. , Ltd |
7. Warranty and Support
For warranty information, product support, or any inquiries, please refer to the contact details provided in the original product packaging or visit the official Comfytemp website.
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