1. Product Overview
The Glocusent Tri-Head Book Light is an innovative reading light designed for optimal illumination and user comfort. Featuring a unique tri-head design, it offers broader and more even lighting compared to traditional book lights. It includes multiple color temperatures, adjustable brightness levels, and a convenient 30-minute timer, making it ideal for various reading environments, including in bed without disturbing others.

Image 1.1: The Glocusent Tri-Head Book Light and its retail packaging.
2. What's in the Box
- 1 x Glocusent Tri-Head Book Light
- 1 x USB-C Charging Cable
- 1 x User Manual (this document)
- 1 x Bookmark
3. Setup and Charging
3.1 Initial Charge
Before first use, fully charge the book light using the provided USB-C cable. The built-in 1000mAh battery provides up to 10 hours of light on the brightest setting and up to 100 hours on the lowest setting.
3.2 Charging Procedure
- Locate the USB-C charging port on the clip base of the book light.
- Connect the provided USB-C cable to the port.
- Plug the other end of the USB-C cable into a compatible USB power adapter (not included) or a computer USB port.
- An indicator light will show charging status (e.g., red for charging, green for fully charged).

Image 3.1: The USB-C charging port located on the clip base.
4. Operating Instructions
4.1 Attaching the Book Light
The book light features a sturdy clip with a soft, non-slip pad to securely attach to books, e-readers, or other surfaces without causing damage. The flexible gooseneck allows for precise positioning.
4.2 Adjusting Light Heads
The unique tri-head design allows for versatile lighting. The two wing-heads are 90° adjustable, enabling you to switch between focused spotlighting and broader illumination. This design provides wider and more even light coverage across both pages of a book.

Image 4.1: The tri-head can be adjusted for focused (0°), wide (90°), or broader (180°) lighting.
4.3 Power On/Off
Press the power button located on the light head to turn the device on or off.
4.4 Light Modes and Brightness
The book light offers 3 color temperatures and 5 adjustable brightness levels for each color. This allows for customized lighting to suit individual preferences and environments.
- Color Temperatures: 2700K (Amber/Eye-friendly), 4000K (Mild/Calming), 6000K (Natural/Focus-boosting).
- Adjusting Color: Short press the color mode button to cycle through the 3 color temperatures.
- Adjusting Brightness: Long press the brightness button to seamlessly adjust through 5 brightness levels. The light will dim or brighten gradually.

Image 4.2: Visual representation of the 3 color temperatures and 5 brightness levels.
4.5 30-Minute Timer
The integrated 30-minute timer automatically turns off the light, preventing prolonged use and conserving battery. This feature is particularly useful for reading before sleep.

Image 4.3: The book light's focused illumination and timer feature are designed to be partner-friendly.
4.6 Official Product Video
Video 4.1: An official product video demonstrating the features and benefits of the Glocusent Tri-Head Book Light.
5. Maintenance
- Keep the device clean by wiping it with a soft, dry cloth.
- Avoid exposing the book light to extreme temperatures or moisture.
- Store in a cool, dry place when not in use for extended periods.
6. Troubleshooting
6.1 Light Not Turning On
- Ensure the battery is charged. Connect the device to a power source using the USB-C cable.
- Verify that the power button is pressed correctly.
6.2 Short Battery Life
- Battery life varies depending on the brightness level used. Higher brightness consumes more power.
- Ensure the device is fully charged before use.
- If the issue persists, contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | A23 |
| Item Model Number | GLCSNTA2301 |
| Light Source Type | LED |
| Number of Light Sources | 27 |
| Color Temperatures | 2700K (Amber), 4000K (Mild), 6000K (Natural) |
| Brightness Levels | 5 (adjustable) |
| Battery Capacity | 1000mAh Lithium Metal |
| Charging Port | USB-C |
| Max Battery Life (Lowest Setting) | Up to 100 hours |
| Max Battery Life (Brightest Setting) | Up to 10 hours |
| Special Feature | 30-Min Timer, Cordless, Adjustable Gooseneck |
| Item Weight | 2.43 ounces (69 Grams) |
| Product Dimensions | 12.2"D x 1.3"W x 1.7"H |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Certifications | FCC, CE, RoHS, PSE & C-TICK certified |
8. Warranty and Support
Glocusent offers a 30-day return service and a 24-month warranty for this product. For any inquiries or support needs, please contact our Customer Experience Team, available 24/7.
Contact Information: Refer to the product packaging or the official Glocusent website for the most up-to-date contact details.





