1. Introduction
Thank you for choosing the XREXS 16.5-inch LED Wall Clock. This digital clock is designed for clear visibility and versatile functionality, featuring a large LED display, adjustable brightness, and multiple modes including time, date, temperature, timer, and alarm. This manual will guide you through the setup, operation, and maintenance of your new clock.
2. Product Features
- Large 16.5-inch LED Display: Features 4.84-inch (12.29 cm) clear digits for easy reading from a distance.
- Adjustable Brightness: 4 levels of adjustable brightness (manual or automatic dimming) to suit day and night use.
- Multi-functional Modes: Displays time, date (month, day), and temperature. Includes Timer and Alarm Clock modes.
- Portable Remote Control: Easily set and adjust clock functions from up to 32 feet away.
- Power Source: Plug-in operation with a memory battery (2 AAA, included) for settings retention during power outages.
- Versatile Placement: Designed for both wall mounting (two hang holes) and tabletop use (fold-out stand).
- Time Formats: Supports 12-hour or 24-hour display.
- Temperature Units: Switch between Celsius (℃) and Fahrenheit (℉).
3. Package Contents
- XREXS 16.5-inch LED Wall Clock
- Remote Control
- Power Adapter (6.56ft power cord)
- User Manual
- 2 x AAA Batteries (for memory function)
Video 1: Unboxing and initial setup of the XREXS LED Wall Clock, showing the contents of the package including the clock, remote control, power adapter, and manual.
4. Setup Instructions
4.1 Power Connection
- Insert the power adapter into the DC port on the back of the clock.
- Plug the power adapter into a standard electrical outlet. The clock display will light up.
4.2 Memory Battery Installation
The clock uses 2 AAA batteries (included) to retain time and settings during a power outage. These batteries do not power the main display.
- Open the battery compartment cover on the back of the clock.
- Insert 2 AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover.

The XREXS LED Wall Clock requires a power outlet for operation. The backup battery compartment is located on the back.

Detailed view of the back of the clock, highlighting the battery compartment and manual control buttons.
4.3 Placement Options
The clock can be placed on a table or mounted on a wall.
- Tabletop: Extend the fold-out stand on the back of the clock to place it on any flat surface.
- Wall Mounting: Use the two keyhole slots on the back of the clock to hang it securely on screws or hooks (not included) in your wall.

The clock offers flexible placement options: wall-mounted using the two hang holes or freestanding on a table with its fold-out stand.

Visual representation of the various ways to position the clock, including wall mounting and tabletop display.
5. Operating Instructions
The clock can be operated using the buttons on the back or the included remote control.

The remote control allows for convenient adjustment of all clock settings.
5.1 Setting Time and Date
- Press the SET button on the remote or the clock. The hour digits will flash.
- Use the UP/DOWN arrows (or HR+/- on remote) to adjust the hour.
- Press SET again to move to minutes, then use UP/DOWN (or MIN+/- on remote) to adjust.
- Continue pressing SET to cycle through year, month, and day settings, adjusting each with the UP/DOWN arrows.
- Press SET one last time to confirm all settings.
5.2 Adjusting Brightness
The clock offers 4 levels of brightness and an automatic dimming feature.
- Manual Adjustment: Press the BRIGHTNESS +/- buttons on the remote to cycle through the 4 brightness levels (Lv.1 to Lv.4). You can also turn the display completely OFF.
- Automatic Dimming: Press the AUTO-DIMMING button on the remote. The clock will automatically adjust its brightness based on ambient light conditions.

The clock features 4 adjustable brightness levels and an automatic dimming function for optimal visibility in any environment.
Video 2: Demonstration of the automatic dimming feature and manual brightness adjustment using the remote control.
5.3 Timer Function
The clock supports both count-up and count-down timers.
- Press the TIMER button on the remote. The display will show "0:00:00".
- Use the HR/MIN/SEC +/- buttons to set the desired count-down time (up to 29 hours, 59 minutes, 59 seconds).
- Press TIMER START/STOP to begin or pause the timer.
- When the count-down ends, the clock will sound a 90-second alarm.
- To clear the timer, press the TIMER CLEAR button.
5.4 Alarm Function
Set up to three independent alarms with different working modes.
- Press the ALARM button on the remote. AL1 will appear.
- Press SET to enter alarm setting mode. The hour digits will flash.
- Use HR/MIN +/- to set the alarm time.
- Press SET again to select the alarm working mode: 1E (Every day), 2E (Workdays), or 3E (Weekend).
- Press SET to confirm. Repeat for AL2 and AL3 if needed.
- To turn an alarm ON/OFF, press the ALARM ON/OFF button while the specific alarm (AL1, AL2, or AL3) is displayed.
5.5 Temperature Display
The clock displays temperature in either Celsius or Fahrenheit.
- Press the ℃/℉ button on the remote to switch between Celsius and Fahrenheit.
5.6 12/24 Hour Format
Switch between 12-hour and 24-hour time formats.
- Press the 12/24HR button on the remote to toggle between the two formats.
5.7 Language Selection
The clock supports 8 languages for day display.
- Press the LANG button on the remote to cycle through available languages.
6. Maintenance
- Cleaning: Wipe the clock surface with a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Battery Replacement: Replace the 2 AAA memory batteries annually or when you notice settings are not retained during power outages.
- Power Cord: Ensure the power cord is not pinched or damaged.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock display is off. | No power, power adapter issue, or display turned off. | Check power connection. Ensure adapter is working. Press the ON/OFF button on the remote. |
| Settings are lost after power outage. | Memory batteries are dead or not installed. | Install or replace the 2 AAA memory batteries. |
| Remote control not working. | Remote batteries dead, obstruction, or out of range. | Replace remote batteries. Ensure no obstructions between remote and clock. Operate within 32 feet. |
| Display too bright/dim. | Brightness setting needs adjustment. | Adjust brightness manually using BRIGHTNESS +/- or activate AUTO-DIMMING. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | XREXS |
| Model Number | 080 |
| Display Type | Digital LED |
| Display Size | 16.5 inches |
| Digit Height | 4.84 inches (12.29 cm) |
| Product Dimensions | 42L x 14.5H cm |
| Weight | 1.16 Kilograms |
| Material | Plastic, Metal (frame) |
| Power Source | Corded Electric |
| Backup Batteries | 2 AAA (included) |
| Special Features | Portable Remote Control, Adjustable Brightness, Timer, Alarm, Temperature Display |
| Mounting Type | Wall Mount, Tabletop |
9. Warranty and Support
XREXS products are manufactured with high-quality standards. For any product-related inquiries, technical support, or warranty claims, please refer to the contact information provided with your purchase or visit the official XREXS website. Please retain your proof of purchase for warranty purposes.