Product Overview
The JoFomp 9-inch LED Digital Wall Clock features a large, clear display and multiple functions designed for convenience and readability in various indoor environments.
Key Features
- 9-inch HD LED Display: Clearly shows time, temperature, humidity, and week.
- Automatic Photosensitive Sensor: Adjusts display brightness based on ambient light conditions.
- Multiple Display Modes: Includes Time, Calendar, Week, Temperature (°C/°F), and Humidity.
- Daylight Saving Time (DST) Function: Automatic adjustment for DST.
- Dual Alarm Function: Set two independent alarms with snooze capability.
- 12/24 Hour Format: Easily switch between time display formats.
- Memory Function: Retains time settings during power outages (requires AAA batteries).
- Versatile Placement: Suitable for wall mounting or desktop use.

This image displays the JoFomp digital clock, highlighting its 9-inch screen and overall dimensions of approximately 8.98 inches (22.8 cm) in width, 2.95 inches (7.5 cm) in height, and 1.38 inches (3.5 cm) in depth.
Package Contents
- JoFomp 9-inch LED Digital Wall Clock
- USB Power Cable
- Power Adapter
- Wall Mounting Nails (x2)
- User Manual (this document)
Setup
Power Connection
The clock requires continuous external power to operate.
- Connect the provided USB power cable to the clock's power input port.
- Plug the other end of the USB cable into the included power adapter.
- Insert the power adapter into a standard electrical outlet. The display will illuminate.
Memory Battery Installation (Optional)
To retain time settings during a power outage, install two AAA batteries (not included) in the memory battery compartment located on the back of the clock.
- Locate the battery compartment cover on the back of the clock.
- Open the cover and insert two 1.5V AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Operating Instructions
Setting Time and Date
Refer to the buttons on the back or side of the clock (typically labeled 'SET', 'MODE', '+', '-') to adjust the time and date. Press the 'SET' or 'MODE' button to cycle through settings (Year, Month, Day, Hour, Minute) and use '+' and '-' to change values. Press 'SET' or 'MODE' again to confirm each setting.
12/24 Hour Format Switch
The clock supports both 12-hour and 24-hour time formats. In time display mode, press the designated button (often '+' or 'MODE') to toggle between these formats.
Daylight Saving Time (DST)
To enable or disable DST, short press the "-" button when the clock is in time display mode. The clock will automatically adjust the time according to the date if DST is enabled.

This image illustrates the Daylight Saving Time (DST) function. It shows how the clock's time changes by one hour when DST is enabled or disabled, with examples of "Spring Forward" (+1 hour) and "Fall Back" (-1 hour).
Alarm Settings
The clock features a dual alarm function.
- Press the "ALARM" button to enter alarm setting mode.
- Use the "+" and "-" buttons to adjust the hour and minute for Alarm 1.
- Press "ALARM" again to confirm and move to Alarm 2 settings, or to exit.
- To activate/deactivate an alarm, press the "ALARM" button repeatedly until the alarm icon appears/disappears on the display.

This image demonstrates the dual alarm feature, showing two alarm icons (Alarm 1 and Alarm 2) on the clock display. It suggests setting alarms for different activities like "Wake Up Time" and "Exercise Time."
Brightness Control
The clock offers automatic and manual brightness adjustment.
- Automatic Photosensitive Mode: The built-in light sensor automatically adjusts the display brightness based on ambient light conditions.
- Manual Brightness Adjustment: Press the "BRIGHTNESS" or a similar button to cycle through different brightness levels (e.g., Low, Medium, High) or to activate a sensitive sleep mode.

This image shows the different brightness adjustment modes available: "L-AU" (Third Gear Auto-Brightness), "L-SL" (Fourth Gear Sleep Mode Auto-Brightness), "L-01" (Low light level), "L-02" (Medium brightness), and "L-03" (High brightness).
Mounting and Placement
The JoFomp digital clock can be placed on a desktop or mounted on a wall.
Desktop Placement
Ensure the clock is placed on a stable, flat surface where it will not be easily knocked over.
Wall Mounting
Use the two included nails to securely mount the clock on a wall. Ensure the mounting location is suitable and can support the clock's weight. Mark the desired positions for the nails, insert them into the wall, and then hang the clock using the keyhole slots on its back.
Maintenance
- Clean the clock's display and casing with a soft, dry cloth. Avoid abrasive cleaners, solvents, or chemical sprays.
- Do not expose the clock to extreme temperatures, direct sunlight for prolonged periods, or high humidity, as this may affect its performance and lifespan.
- If the clock will not be used for an extended period, remove the AAA memory batteries to prevent leakage and potential damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank | No power connection | Ensure USB cable and adapter are securely connected and plugged into a working electrical outlet. |
| Time is incorrect after power outage | Memory batteries not installed or depleted | Install new AAA batteries in the memory compartment. |
| Display is too dim/bright | Brightness setting | Adjust brightness manually or switch to automatic photosensitive mode using the designated button. |
| Alarm does not sound | Alarm not activated or volume too low | Check alarm settings and ensure the alarm is enabled (alarm icon visible). |
| Temperature/Humidity inaccurate | Environmental factors | Allow time for sensors to stabilize. Ensure clock is not near heat sources, vents, or in direct sunlight. |

This image displays icons for the clock's multiple functions, including Dual Alarm, Temperature, Week, Brightness Control, Drowsiness (Snooze), Humidity, Memory Function, and Date.
Specifications
| Feature | Detail |
|---|---|
| Brand | JoFomp |
| Model Number | 5503 |
| Display Type | Digital LED |
| Screen Size | 9 inches |
| Product Dimensions | 29.97 x 3.81 x 10.16 cm (approx. 11.8 x 1.5 x 4 inches) |
| Product Weight | 318 g (approx. 0.7 lbs) |
| Power Source | USB Cable (external power) |
| Memory Battery | 2 x AAA 1.5V (not included) |
| Special Features | Adjustable Brightness, DST, Dual Alarm, Temperature, Humidity, Calendar, Week |
| Color | Pink |
| Room Type | Living Room, Bedroom, Kitchen, Office, Bathroom |
| Mounting | Wall-mountable, Desktop |
Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact JoFomp customer service through the retailer where the product was purchased. Keep your purchase receipt as proof of purchase.





