Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Horoper Projection Alarm Clock. Please read this manual thoroughly before using the device to ensure proper function and longevity.
Product Features
- Projection Function: Projects time onto a ceiling or wall for easy viewing with 360-degree adjustment.
- Temperature Display: Shows ambient room temperature in Celsius or Fahrenheit.
- Power Off Memory: Retains time, alarm, and other settings during power interruptions.
- LED Mirror Display: Clear digital time display with a modern mirror finish.
- Large Screen Design: Enhanced readability of time and date.
Package Contents
- 1 x Horoper Projection Alarm Clock
- 1 x User Manual (this document)
- 1 x USB Power Cable (AC adapter not included)
Setup
- Unpacking: Carefully remove the alarm clock and all accessories from the packaging.
- Power Connection: Connect the provided USB power cable to the clock and then to a compatible USB power adapter (not included) or a powered USB port. The display will illuminate.
- Initial Time Setting: Upon first power-up, the clock may display a default time. Refer to the "Operating Instructions" section for setting the correct time and date.
- Placement: Place the clock on a stable, flat surface. Ensure the projection lens is unobstructed if you intend to use the projection feature.

Figure 1: Front view of the Horoper Projection Alarm Clock, showing the LED display and projection lens.
Operating Instructions
1. Time and Date Setting
- Press and hold the "MODE" button (or similar, refer to device for exact button) for 3 seconds. The hour digits will flash.
- Use the "UP" or "DOWN" buttons to adjust the hour.
- Press "MODE" again to confirm the hour and move to minute setting.
- Use "UP" or "DOWN" to adjust the minutes.
- Continue pressing "MODE" to cycle through year, month, and day settings, adjusting with "UP" or "DOWN" as needed.
- Press "MODE" one last time to exit time/date setting mode.
2. Alarm Setting
- Press the "ALARM" button (or similar) once. The alarm hour digits will flash.
- Use "UP" or "DOWN" to set the desired alarm hour.
- Press "ALARM" again to confirm the hour and move to minute setting.
- Use "UP" or "DOWN" to set the desired alarm minutes.
- Press "ALARM" one last time to activate the alarm and exit setting mode. An alarm icon (e.g., "AL") will appear on the display.
- To turn off the alarm, press the "ALARM" button until the alarm icon disappears.
3. Projection Function
- The projection lens is located on the top of the clock.
- To activate/deactivate projection, press the "PROJECTOR" button (or similar).
- Adjust the angle of the projection lens to direct the time display onto your desired surface (ceiling or wall). The projection is 360-degree adjustable.
- Some models may have a focus ring around the projection lens to sharpen the projected image. Rotate it gently if available.

Figure 2: The clock projecting the time onto a ceiling, visible in a dimly lit room.

Figure 3: The alarm clock on a bedside table, simultaneously displaying time on its LED screen and projecting it onto the ceiling.

Figure 4: A detailed view of the adjustable projection lens located on the top of the clock.
4. Temperature Display
- The clock automatically displays the ambient room temperature.
- To switch between Celsius (°C) and Fahrenheit (°F), press the "TEMP" button (or similar).

Figure 5: A close-up of the LED mirror display, showing the digital time and temperature readings.
5. Snooze Function
- When the alarm sounds, press the "SNOOZE" button (usually a large button on top) to temporarily silence the alarm.
- The alarm will sound again after a preset interval (e.g., 5-10 minutes).
Maintenance
- Cleaning: Use a soft, dry cloth to clean the clock's surface. Do not use abrasive cleaners or solvents.
- Projection Lens: Gently wipe the projection lens with a microfiber cloth to remove dust or smudges.
- Power: Ensure the clock is disconnected from the power source before cleaning or if it will be stored for an extended period.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock display is blank. | No power. | Check USB power cable connection and power source. |
| Projection is blurry. | Projection lens out of focus or too far/close to surface. | Adjust the focus ring (if present) or reposition the clock. |
| Alarm does not sound. | Alarm not set or volume too low. | Verify alarm settings and ensure alarm is activated. |
| Incorrect temperature reading. | Sensor obstruction or extreme environmental conditions. | Ensure the clock is in an open area, away from direct heat or cold sources. |
Specifications
- Brand: Horoper
- Model: B0CMQSN8CD
- Display Type: Digital LED
- Material: Plastic
- Dimensions: 7.87 x 3.94 x 1.97 inches (20 x 10 x 5 cm)
- Item Weight: 8.5 ounces (240 grams)
- Operation Mode: Electrical (USB powered)
- Features: Time Projection, Alarm, Temperature Display (°C/°F), Power Off Memory, Snooze Function
Warranty and Support
For warranty information or technical support, please contact Horoper customer service through the retailer where the product was purchased or visit the official Horoper website. Please have your model number (B0CMQSN8CD) and purchase date available.
Note: Specific warranty terms may vary by region and retailer.