1. Introduction
This manual provides detailed instructions for the safe and effective use of your Glocusent GLCSNTBL301 USB Rechargeable Book Light. Please read this manual thoroughly before operating the device and retain it for future reference.
2. Product Overview
2.1 Key Features
- Adjustable Brightness: 5 dimmable brightness levels to suit various reading environments.
- Multiple Color Modes: 3 distinct color temperatures: Amber (1800K) for blue light filtering, Breeze (3400K) for comfortable reading, and Precise (6000K) for focused tasks.
- USB Rechargeable: Integrated 500mAh battery provides 10-80 hours of illumination per charge, depending on brightness settings.
- Flexible Design: The clip opens up to 150°, and the light head rotates 90° left/right and 45° downward for optimal positioning.
- Compact & Portable: Weighing only 1.41oz (41g), its lightweight design makes it ideal for travel and easy clipping onto books.
- Eye-Caring: Designed to provide even light distribution without flickering or harsh glare, reducing eye strain.
- Power Indicators: 4 LED indicators display remaining battery power.
2.2 Package Contents
- 1 x Glocusent GLCSNTBL301 Book Light
- 1 x Bookmark
- 1 x User Manual
3. Setup
3.1 Charging the Book Light
Before first use, fully charge the book light. The integrated USB plug allows for direct charging without an additional cable.
- Locate the USB plug at the base of the book light. It is protected by a cover that blends with the casing.
- Insert the USB plug into any standard USB port (e.g., computer, power bank, USB wall adapter).
- The 4 power indicator LEDs will illuminate to show charging progress. All 4 LEDs will be solid when fully charged.
A full charge typically provides 10-80 hours of use, depending on the selected brightness level.
Image: The Glocusent GLCSNTBL301 book light showing its integrated USB plug and control buttons.
Image: A diagram illustrating the 500mAh battery capacity and various USB charging methods (power bank, phone charger, laptop).
4. Operating Instructions
4.1 Power On/Off
Press the power button (marked with a circle and vertical line) located on the front of the device to turn the light on or off.
4.2 Adjusting Brightness
The book light offers 5 brightness levels. After turning the light on, press the brightness adjustment button (marked with three horizontal lines) repeatedly to cycle through the 5 brightness settings. The device will remember your last brightness setting for future use.
Image: Visual representation of the 5 adjustable brightness levels, from dim to bright.
4.3 Changing Color Modes
The book light features 3 color modes. Press the color mode button (marked with a light bulb and temperature icon) repeatedly to switch between:
- Amber Mode (1800K): Filters 99.9% of blue light, ideal for eye protection and reducing eye strain, especially before sleep.
- Breeze Mode (3400K): Provides a cozy and comfortable light, suitable for general reading.
- Precise Mode (6000K): Offers a bright, clear light for tasks requiring high concentration.
Image: A visual guide to the three distinct color modes and their recommended uses.
4.4 Adjusting Light Angle
The book light is designed with flexibility to accommodate various reading positions and book sizes:
- The clamp can open up to 150° to securely attach to books or other surfaces.
- The light head can be rotated 90° to the left, 90° to the right, and 45° downward.
NOTE: DO NOT turn the head of the light hard to the left or right beyond 90°, as it contains an internal electrical cord that could be damaged.
Image: Illustrations demonstrating the 150° clamp opening and the 90° left/right and 45° downward rotation of the light head.
5. Maintenance
5.1 Cleaning
To clean the book light, gently wipe it with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the finish or electronic components.
5.2 Storage
When not in use for extended periods, store the book light in a cool, dry place. Ensure it is fully charged before storing to maintain battery health.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | Battery is depleted. | Charge the book light using a standard USB port. Check power indicators. |
| Light flickers or is dim. | Low battery or incorrect brightness setting. | Recharge the device. Adjust brightness level using the brightness button. |
| Cannot change color mode. | Incorrect button pressed or temporary software glitch. | Ensure you are pressing the color mode button. Try turning the device off and on again. |
| Light head feels loose or does not hold position. | Normal wear or excessive force applied. | Avoid over-rotating the light head beyond specified limits. If damage is suspected, contact customer support. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | Bookmark Style Reading Light |
| Item Model Number | GLCSNTBL301 |
| Dimensions | 4.09"D x 1.34"W x 0.59"H (10.4 x 3.4 x 1.5 cm) |
| Item Weight | 1.45 ounces (41 Grams) |
| Light Source Type | LED |
| Number of Light Sources | 5 |
| Brightness | 28 Lumen |
| Color Temperatures | Amber (1800K), Breeze (3400K), Precise (6000K) |
| Power Source | Battery Powered (Lithium Polymer) |
| Battery Capacity | 500mAh |
| Voltage | 5 Volts (DC) |
| Control Method | Touch Buttons |
| Mounting Type | Clip On |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Finish Type | Matte |
| Water Resistance Level | Not Water Resistant |
| Certifications | FCC, CE, RoHS, PSE, C-TICK approved |
8. Warranty and Support
8.1 Product Warranty
Your Glocusent GLCSNTBL301 Book Light is covered by a 24-month warranty from the date of purchase. This warranty covers manufacturing defects and ensures reliable performance under normal use. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For any questions, concerns, or technical assistance, please contact Glocusent customer service. Our team is available to provide friendly and responsive support.
- Online Support: Visit the official Glocusent website or Amazon store page for FAQs and contact options.
- Email Support: Refer to the contact information provided in your product packaging or on the official Glocusent website.
