1. Introduction
Thank you for choosing the TPHRAVAL IN12 Nixie Clock. This device combines vintage aesthetics with modern technology, featuring authentic Ex-USSR IN12 glow tubes, WiFi timing, and customizable RGB lighting. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and enjoyment of your Nixie clock.
2. Safety Information
- Ensure the clock is placed on a stable, flat surface to prevent accidental falls.
- Keep the device away from water, high humidity, and extreme temperatures.
- Use only the provided power adapter or a compatible 5V/1A USB-C power source.
- Do not attempt to disassemble or repair the clock yourself. Contact customer support for assistance.
- Keep out of reach of children and pets.
3. Package Contents
Please verify that all items are present in your package:
- TPHRAVAL IN12 Nixie Clock
- USB-C Power Cable
- Remote Control
- User Manual (this document)
4. Product Overview
The TPHRAVAL IN12 Nixie Clock features six authentic IN12 glow tubes, providing a unique retro digital display. It includes multiple RGB lighting modes, WiFi connectivity for accurate time synchronization, and convenient control options via remote or a mobile application.


Features:
- Authentic IN12 Glow Tubes: Utilizes real Ex-USSR IN12 tubes for a classic, warm glow.
- Customizable RGB Lighting: Features multiple RGB lighting modes (e.g., rainbow, breathing, monochrome) with adjustable colors.
- Dual Control Modes: Operate the clock using the included remote control or a dedicated mobile application.
- Power Failure Memory: Retains time settings even after power interruptions.
- Multiple USB-C Ports: Equipped with three Type-C ports for flexible power connection.
- Time Functions: Includes Daylight Saving Time setting, timer on/off, stopwatch, and countdown features.
5. Setup
5.1 Power Connection
Connect the provided USB-C power cable to one of the three available Type-C ports on the clock and plug the other end into a compatible 5V/1A USB power adapter (not included) or a powered USB port. The clock will power on automatically.

5.2 WiFi Setup and Time Synchronization
The clock can synchronize time via WiFi for accuracy. You can set up WiFi using either the remote control or the mobile application.
- Using the Mobile App:
- Download the dedicated mobile application (refer to the packaging or manufacturer's website for app details).
- Ensure your smartphone is connected to a 2.4GHz Wi-Fi network.
- Open the app and follow the on-screen instructions to connect the clock to your Wi-Fi network. This typically involves putting the clock into a pairing mode and selecting your Wi-Fi network.
- Once connected, the clock will automatically synchronize its time.
- Using the Remote Control:
- Refer to the remote control instructions (often accessible via the clock's Wi-Fi interface once connected, or provided separately).
- Navigate through the clock's settings menu using the remote to find the Wi-Fi setup option.
- Enter your Wi-Fi network name (SSID) and password using the remote's input method.
- Confirm the settings to connect the clock to Wi-Fi and synchronize time.
For optimal performance, it is recommended to use the mobile application for initial setup and advanced settings.
6. Operation
6.1 RGB Lighting Modes
The clock features various RGB lighting modes that can be adjusted via the remote control or mobile app.
- Mode Selection: Cycle through modes such as rainbow, breathing light, and monochrome.
- Color Adjustment: In monochrome mode, select specific colors.
- Brightness Control: Adjust the intensity of the RGB backlighting.
- On/Off: The RGB lights can be turned on or off independently of the Nixie tubes.

6.2 Time Display Settings
- 12/24 Hour Switching: Easily switch between 12-hour and 24-hour time formats using the remote or app.
- Daylight Saving Time (DST): Enable or disable DST as needed through the settings.

6.3 Additional Functions
The clock offers several utility functions:
- Timer On/Off: Schedule specific times for the clock to turn on or off.
- Stopwatch: Utilize the built-in stopwatch function for timing events.
- Countdown: Set a countdown timer for various purposes.
7. Maintenance
- Cleaning: Gently wipe the clock's surface and tubes with a soft, dry cloth. Avoid abrasive cleaners or liquids.
- Tube Longevity: To prolong the life of the Nixie tubes, consider lowering the tube brightness in the settings. Running tubes at lower brightness settings (e.g., 8-10 instead of 50) can significantly extend their operational lifespan.
- Tube Seating: If a numeral appears to not be working, gently apply slight pressure to reseat the affected Nixie tube.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock does not power on | No power, faulty cable/adapter | Ensure USB-C cable is securely connected. Try a different USB-C port, cable, or power adapter. |
| Time is incorrect or not updating | No WiFi connection, incorrect time zone, app/remote issue | Verify WiFi connection status. Re-establish WiFi connection via app or remote. Check time zone settings in the app. If using the app, ensure it is updated to the latest version. |
| One or more Nixie tubes are not displaying correctly | Loose tube, tube failure | Gently press down on the top of the affected tube to ensure it is fully seated. If the issue persists, contact customer support. |
| Remote control not working | Dead battery, obstruction, out of range | Replace the remote control battery. Ensure there are no obstructions between the remote and the clock. Operate within a reasonable range. |
| Mobile app is unresponsive or in a foreign language | App glitch, language setting | Close and restart the app. Check for app updates. Look for language settings within the app. If issues persist, try reinstalling the app. |
9. Specifications

| Feature | Detail |
|---|---|
| Brand | TPHRAVAL |
| Model Number | IN12 |
| Display Type | Digital (Nixie Tubes) |
| Power Source | Corded Electric (USB-C, 5V/1A recommended) |
| Product Dimensions | 6.92"W x 1.85"H |
| Item Weight | 2.12 pounds (0.96 Kilograms) |
| Material | Metal, Acrylonitrile Butadiene Styrene |
| Special Features | Remote control, WiFi Timing, RGB Lighting, Power-off Memory |
| Batteries | 1 Lithium Ion battery required (included for remote) |
| UPC | 880370931834 |
10. Warranty and Support
For any questions, technical support, or warranty inquiries, please contact TPHRAVAL customer service. Refer to the product packaging or the manufacturer's official website for contact information. Please have your model number (IN12) and purchase details ready when contacting support.