1. Introduction
Thank you for purchasing the JALL 10.5-inch Large Digital Wall Clock, Model PH-03. This clock features a large LED display, multiple color modes, alarm functions, automatic Daylight Saving Time (DST) adjustment, and temperature display. Designed for clear readability from a distance, it is suitable for various environments including homes, offices, and classrooms.

The large display ensures clear readability for all users, even from a distance.
2. Safety Information
- This device is NOT battery operated for its main functions. It requires continuous power from the included 5V/2A power adapter and 6.5 feet cable cord.
- A CR2032 memory battery is included internally to retain settings during power outages, but it does not power the LED display.
- Ensure the power adapter is connected to a suitable power outlet.
- Do not expose the clock to water or excessive moisture.
- Avoid disassembling the device; refer to qualified personnel for repairs.

The clock requires continuous power via the included USB cable and adapter.
3. Package Contents
Please check the package for the following items:
- JALL 10.5-inch Digital Wall Clock (Model PH-03)
- Remote Control
- 5V/2A Power Adapter
- 6.5 feet USB Power Cable
- Mounting Hardware (screws, wall anchors)
- User Manual (this document)
4. Product Features
- Large LED Display: 10.5-inch screen with clear, large numbers for easy viewing.
- Multiple Color Modes: Choose from 8 different display colors, including pure colors and dynamic RGB color-changing options.
- Automatic DST: Automatically adjusts for Daylight Saving Time in March and November.
- Auto Brightness: Built-in light sensor adjusts display brightness for optimal viewing comfort. Manual brightness adjustment is also available.
- Warm Night Light: Features a back surround night light with adjustable brightness levels to create a soft ambiance.
- Alarm Function: Includes alarm capabilities.
- Temperature Display: Shows temperature in Celsius or Fahrenheit.
- Countdown Timer: Integrated countdown function for various activities.
- Versatile Mounting: Can be placed on a tabletop using its stand or mounted on a wall.

Overview of the clock's main features and display elements.

Physical dimensions of the JALL digital clock.
5. Setup Guide
5.1 Power Connection
- Connect the provided USB power cable to the DC 5V-2A input port on the back of the clock.
- Plug the other end of the USB cable into the included 5V/2A power adapter.
- Insert the power adapter into a standard electrical wall outlet. The clock display will illuminate.
5.2 Mounting Options
The clock can be used on a tabletop or mounted on a wall.
- Tabletop Placement: Simply place the clock on a flat, stable surface.
- Wall Mounting:
- Identify the hanging holes on the back of the clock.
- Use the included paper hanging assistant (if provided) or measure the distance between the hanging holes.
- Mark the desired wall location for the screws.
- Drill pilot holes, insert wall anchors (if necessary), and screw in the mounting screws, leaving a small portion exposed.
- Carefully align the clock's hanging holes with the screws and slide the clock into place.

Back of the clock showing power input, hanging holes, and the internal memory battery.
6. Operation Guide
All functions are primarily controlled using the included remote control.
6.1 Basic Controls (Remote)
Refer to the remote control's button layout for specific functions. Common buttons include:
- SET: Enter/confirm settings.
- UP/DOWN Arrows: Adjust values or navigate menus.
- MODE: Cycle through display modes or settings.
- ALARM: Access alarm settings.
- COLOR: Change display colors.
- BRIGHTNESS/DIMMER: Adjust display brightness.
- DST: Manually enable/disable DST (if not automatic).
- TIMER: Activate countdown timer.
6.2 Setting Time and Date
- Press the SET button on the remote. The hour digits will flash.
- Use the UP/DOWN arrows to adjust the hour.
- Press SET again to move to minutes, then adjust.
- Continue pressing SET to cycle through year, month, day, and weekday settings, adjusting each with the UP/DOWN arrows.
- Press SET one last time to confirm all settings.
6.3 Alarm Settings
- Press the ALARM button on the remote.
- Use UP/DOWN arrows to select Alarm 1, 2, or 3 (if multiple alarms are supported).
- Press SET to enter alarm time adjustment.
- Adjust hour and minute using UP/DOWN arrows and SET.
- Follow prompts to set alarm duration, snooze time, and repetition (e.g., daily, weekdays).
- Press SET to confirm and activate the alarm.
6.4 Display Modes and Colors
The clock offers 8 color modes and can display temperature or seconds.
- Changing Colors: Press the COLOR button on the remote to cycle through the 8 available color modes, including solid colors and RGB changing patterns. You can also use a 'freeze' feature (if available on your remote) to stop on a preferred color.
- Temperature/Seconds Display: Use the MODE button to toggle between displaying the temperature (C°/F°) or a seconds counter. To change between Celsius and Fahrenheit, locate the dedicated C°/F° button on the remote or cycle through display options.

Examples of the 8 color modes available for the clock display.
6.5 Brightness Adjustment
The clock features both automatic and manual brightness control.
- Auto Dimming: The built-in light sensor automatically adjusts the display brightness based on ambient light conditions. This feature is designed to protect your eyes and optimize visibility.
- Manual Adjustment: Use the BRIGHTNESS or DIMMER buttons on the remote to manually increase or decrease the display brightness. You may also be able to turn the display off entirely for complete darkness.

The auto-dimming feature adjusts display brightness according to ambient light.
6.6 Daylight Saving Time (DST)
The clock is designed to automatically adjust for Daylight Saving Time.
- The clock will automatically change time in March (Spring Forward) and November (Fall Back).
- No manual intervention is typically required for DST adjustments.

The clock automatically adjusts for Daylight Saving Time.
6.7 Countdown Timer
The integrated countdown timer can be used for various activities.
- Press the TIMER button on the remote.
- Use the UP/DOWN arrows to set the desired countdown duration (e.g., up to 30 minutes).
- Press SET or START (if available) to begin the countdown.
- An audible alert will sound when the timer reaches zero.

The countdown timer function is suitable for various activities.
6.8 Night Light Function
The clock features a back surround night light.
- Press the dedicated NIGHT LIGHT button (if available) or cycle through display modes to activate the night light.
- Use the UP/DOWN arrows or brightness controls to adjust the 5 brightness levels of the night light.
- This feature provides a warm, ambient glow without being overly bright.

The warm night light offers 5 adjustable brightness levels.
7. Maintenance
- To clean the clock, gently wipe the display and casing with a soft, dry, or slightly damp cloth.
- Do not use abrasive cleaners, solvents, or chemical sprays, as these may damage the surface.
- Ensure the clock is unplugged before cleaning.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock display is off. | No power supply. | Ensure the power adapter is securely plugged into the clock and a working wall outlet. Check the power cable for damage. |
| Settings are lost after power outage. | Memory battery depleted or missing. | The internal CR2032 memory battery should retain settings. If not, contact customer support. |
| Temperature display is inaccurate. | Internal sensor reading clock's own temperature. | The internal temperature sensor may be influenced by the clock's internal components. Consider this a general indicator rather than a precise room temperature. You can switch to seconds display if preferred. |
| Remote control not working. | Remote battery depleted or obstruction. | Replace the remote control battery. Ensure there is no obstruction between the remote and the clock's sensor. |
| Auto-dimming not working as expected. | Light sensor obstructed or insufficient ambient light. | Ensure the light sensor on the clock is not covered. In very low light conditions, the auto-dimming may make the display very dim. Adjust manually if needed. |
9. Technical Specifications
| Feature | Specification |
|---|---|
| Brand | JALL |
| Model Number | PH-03 |
| Display Type | Digital LED |
| Display Size | 10.5 inches |
| Product Dimensions | 10"W x 3.3"H |
| Power Source | Corded Electric (5V/2A adapter) |
| Backup Battery | 1 CR2032 (for memory retention) |
| Material | Plastic, Acrylonitrile Butadiene Styrene |
| Mounting Type | Tabletop or Wall Mount |
| Special Features | Daylight Saving, Alarm, RGB Colors, Auto Brightness, Temperature Display, Countdown Timer, Night Light |
| Item Weight | 15.8 ounces |
10. Limited Warranty
This JALL product comes with a limited warranty. Please refer to the warranty card included in your package or contact customer support for detailed information regarding warranty terms and conditions.
11. Customer Support
If you encounter any issues or have questions regarding your JALL 10.5-inch Large Digital Wall Clock, please contact our customer support team:
- Email: [Insert Customer Support Email Here]
- Phone: [Insert Customer Support Phone Number Here]
- Website: Visit the JALL Store on Amazon
Please have your model number (PH-03) and purchase details ready when contacting support.





