1. Introduction
Thank you for choosing the UMEXUS Cordless Dimmable Table Lamp. This manual provides essential information for the safe and efficient operation of your new lamp. Please read these instructions thoroughly before use and retain them for future reference.

Image 1.1: The UMEXUS Cordless Dimmable Table Lamp in Gold finish.
2. Safety Information
To ensure safe operation and prevent damage, please observe the following safety guidelines:
- Do not disassemble, repair, or modify the lamp yourself. Contact qualified service personnel for repairs.
- Keep the lamp away from extreme temperatures, direct sunlight, and high humidity.
- Use only the provided USB-C charging cable and UL Listed Adapter, or a certified equivalent, for charging.
- Avoid dropping the lamp or subjecting it to strong impacts.
- This lamp contains a Lithium-Ion battery. Do not expose the battery to fire or extreme heat. Dispose of batteries according to local regulations.
- While the lamp is water-resistant for outdoor use, avoid submerging it in water or exposing it to heavy rain for extended periods.
3. Package Contents
Verify that all items are present in your package:
- 1 x UMEXUS Cordless Dimmable Table Lamp
- 1 x USB-C Charging Cable
- 1 x UL Listed Power Adapter
- 1 x Lithium Ion Battery (pre-installed)
4. Product Overview
Familiarize yourself with the components of your UMEXUS table lamp:

Image 4.1: Key components of the UMEXUS Cordless Dimmable Table Lamp.
- Touch Sensor: Located on the top of the lamp shade for controlling light modes and brightness.
- USB-C Charging Port: Located on the base for connecting the charging cable.
- LED Charging Indicator: Adjacent to the USB-C port, indicates charging status.
- Bottom Switch: A physical power switch located on the underside of the lamp base. This switch must be pressed once for initial activation.
5. Setup
- Initial Activation: Before first use, locate the physical switch on the bottom of the lamp base. Press this switch once to activate the internal battery and enable touch controls.
- Initial Charge: For optimal performance, fully charge the lamp before its first use. Connect the provided USB-C cable to the lamp's charging port and the other end to the UL Listed Adapter, then plug into a power outlet. The LED indicator will show red during charging and turn green when fully charged.
6. Operating Instructions
Once activated and charged, operate the lamp using the touch sensor on the top of the shade:

Image 6.1: Touch control functions for light color and brightness.
- Power On/Off: After initial activation via the bottom switch, a short tap on the touch sensor will turn the lamp on or off.
- Change Color Mode: With the lamp on, short tap the touch sensor repeatedly to cycle through the three available color modes: Warm Light, White Light, and Warm White Light.
- Adjust Brightness (Stepless Dimming): With the lamp on, press and hold the touch sensor. The brightness will gradually increase or decrease. Release your finger when the desired brightness level is reached.

Image 6.2: The three distinct color temperature options: Warm, Natural, and Cold Light.

Image 6.3: Stepless dimming allows for precise brightness adjustment.
7. Charging
The UMEXUS table lamp is equipped with a rechargeable Lithium-Ion battery, offering cordless operation.
- Charging Port: Use the USB-C port located on the lamp's base.
- Charging Indicator: A red light indicates the lamp is charging. A green light indicates charging is complete.
- Battery Life: A full charge provides approximately 10 to 60 hours of usage, depending on the selected brightness level. Higher brightness levels consume more power.
- Usage While Charging: The lamp can be used while it is connected to a power source and charging.

Image 7.1: USB-C charging port location and lamp dimensions.

Image 7.2: The lamp's cordless design allows for portable use.
8. Care and Maintenance
Proper care will extend the life and maintain the appearance of your lamp:
- Cleaning: Wipe the lamp with a soft, dry cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the finish.
- Storage: When not in use for extended periods, store the lamp in a cool, dry place. Ensure the battery is partially charged (around 50%) before storage to prolong battery health.
- Battery Care: Avoid completely draining the battery frequently. Recharge the lamp when the light output becomes noticeably dim.
9. Troubleshooting
If you encounter issues with your lamp, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Lamp does not turn on. | Bottom switch is off. Battery is depleted. | Press the bottom switch once to activate. Charge the lamp fully. |
| Lamp does not charge. | Charging cable or adapter is faulty. Port is obstructed. | Ensure cable and adapter are securely connected and functional. Check USB-C port for debris. |
| Light is too dim or too bright. | Brightness level needs adjustment. | Press and hold the touch sensor to adjust brightness. |
| Light color is not desired. | Incorrect color mode selected. | Short tap the touch sensor to cycle through color modes. |
10. Specifications
Detailed technical specifications for the UMEXUS Cordless Dimmable Table Lamp:
| Feature | Specification |
|---|---|
| Model Number | RG-15825 |
| Dimensions (D x W x H) | 3.93" x 3.93" x 8.85" |
| Item Weight | 1.06 pounds |
| Material | Metal (Brass finish), Acrylic |
| Light Source Type | LED |
| Color Temperature | 3000 Kelvin (Warm), 4600 Kelvin (Natural), 6500 Kelvin (White) |
| Control Method | Touch Sensor |
| Power Source | Battery Powered (Rechargeable Lithium Ion) |
| Voltage | 5 Volts |
| Battery Life | 10-60 hours (depending on brightness) |
| Special Features | Cordless, Dimmable, Portable, Rechargeable, Water Resistant |
| Indoor/Outdoor Usage | Yes |

Image 10.1: Physical dimensions of the UMEXUS Cordless Dimmable Table Lamp.
11. Warranty and Support
For warranty information or technical support, please contact UMEXUS customer service through the retailer's platform or the official UMEXUS website. Please have your model number (RG-15825) and purchase details ready when contacting support.

