1. Introdución
The ThruNite TN12 Pro is a high-performance, USB-C rechargeable Everyday Carry (EDC) flashlight designed for versatility and reliability. It features a powerful SFT40 LED, delivering up to 1900 lumens, and offers a maximum beam distance of 380 meters. Its dual-switch interface provides intuitive control, making it suitable for various applications from daily tasks to tactical use.

Figure 1.1: The ThruNite TN12 Pro Flashlight, showcasing its compact design and pocket clip.
Constructed from durable aluminum alloy with a scratch-resistant anodized finish, the TN12 Pro is built to withstand challenging conditions. It is also waterproof with an IPX-8 rating, ensuring performance even when submerged up to 2 meters. The integrated USB-C charging port allows for convenient and fast recharging without removing the battery.
2. Configuración
2.1 Contido do paquete
Before first use, please verify that all items are present in the package:
- ThruNite TN12 Pro Flashlight
- 1x Lithium Ion Battery (included)
- Cable de carga USB-C
- Funda
- Acollador
- Juntas tóricas de recambio
- Spare USB Port Cover

Figure 2.1: All components included in the ThruNite TN12 Pro product package.
2.2 Battery Installation & Initial Charging
The TN12 Pro comes with a pre-installed Lithium Ion battery. Ensure the battery is properly seated before first use. For optimal performance, fully charge the flashlight before its initial operation.
- Desenrosque a tapa da cola da lanterna.
- Ensure the included 18650 Lithium Ion battery is inserted with the positive (+) terminal facing towards the head of the flashlight.
- Atornille a tapa da cola de forma segura.
- Connect the provided USB-C cable to the flashlight's charging port and to a USB power source (e.g., wall adapter, computer USB port).
- The indicator light on the side switch will show the charging status:
- Vermello: Cargando
- Azul: Totalmente cargado
- Roxo: Carga anormal
- Once fully charged, disconnect the USB-C cable and replace the port cover to maintain water resistance.

Figure 2.2: Illustration of the USB-C charging port and the color-coded charging indicator on the side switch.

Figura 2.3: detallada view of the power indicator on the side switch, showing battery level ranges.
3. Funcionamento
3.1 Funcións xerais
- Bloquear/Desbloquear: When the flashlight is off, press and hold the side switch to enter Firefly mode. From Firefly mode, press and hold the side switch again to access lockout mode. To unlock, press and hold the side switch.
- Activar/desactivar: After the light is unlocked, press the side switch to turn the light ON/OFF. The light will turn on in the last mode used, except for Firefly, Turbo, and Strobe.
- Cambiar modos: Single-click the side switch to activate the last used mode. Then, press and hold the side switch to cycle through Low, Medium, and High modes.
3.2 Modos especiais
- Atallo para Firefly: When the light is off, press and hold the side switch to directly access Firefly mode.
- Direct Access to Turbo (Side Switch): Double-click the side switch quickly from any mode to activate Turbo mode.
- Direct Access to Turbo (Tail Switch): When the flashlight is unlocked, single-click the tactical tail switch to access Turbo mode directly.
- Estroboscópico: Triple-click the side switch quickly from any mode to activate Strobe mode.

Figure 3.1: Demonstrates holding the TN12 Pro and its versatility for everyday carry, including clipping to a pocket or bag.
4. Mantemento
4.1 Coidados xerais
- Keep the flashlight clean, especially the threads and O-rings. Lubricate O-rings periodically with silicone grease to maintain water resistance.
- Evite deixar caer a lanterna ou sometela a impactos fortes.
- Garda a lanterna nun lugar fresco e seco cando non a uses durante períodos prolongados.
- If the flashlight will not be used for a long time, it is recommended to remove the battery to prevent potential leakage.
4.2 Impermeabilización
The TN12 Pro is rated IPX-8 waterproof, meaning it can be continuously submerged in water up to 2 meters. To ensure this rating is maintained:
- Asegúrese de que o tapón da cola estea completamente axustado.
- Ensure the USB-C charging port cover is securely closed.
- Regularly inspect and replace O-rings if they appear damaged or worn.

Figure 4.1: The TN12 Pro demonstrating its IPX-8 waterproof capability, suitable for use in wet conditions.
5. Especificacións
Below are the detailed specifications for the ThruNite TN12 Pro Flashlight:
| Característica | Detalle |
|---|---|
| Modelo | TN12 Pro cw |
| Marca | ThruNite |
| Fonte de luz | SFT40 LED |
| Saída máxima | 1900 lúmenes |
| Distancia máxima do feixe | 380 metros |
| Fonte de enerxía | 1x Lithium Ion Battery (included) |
| Cargando | Carga rápida USB-C |
| Material | Aliaxe de aluminio |
| Resistencia á auga | IPX-8 (2 meters submersible) |
| Resistencia ao impacto | 1.5 metros |
| Dimensións | 131.5mm (Length) x 27mm (Head Diameter) x 25.5mm (Body Diameter) |
| Peso | 85 g (batería excluída) |
| Modos de luz | Firefly, Low, Medium, High, Turbo, Strobe |

Figure 5.1: Physical dimensions and the SFT40 LED of the TN12 Pro flashlight.

Figure 5.2: Key performance metrics including max output, runtime, beam distance, waterproof rating, and impact resistance.
6 Solución de problemas
If you encounter issues with your ThruNite TN12 Pro, please refer to the following common solutions:
- A lanterna non se acende:
- Asegúrate de que a batería estea inserida correctamente co terminal positivo (+) cara á cabeza.
- Comprobe se a batería está cargada. Cárguea de novo se é necesario.
- Make sure the tail cap is fully tightened. A loose tail cap can prevent electrical contact.
- Check if the flashlight is in lockout mode. Press and hold the side switch to unlock.
- A saída de luz é tenue ou parpadea:
- Pode que a batería estea baixa. Recargue a batería.
- Clean the battery contacts and flashlight threads with a clean cloth.
- A lanterna quéntase durante o uso:
- High output modes (e.g., Turbo) generate significant heat. This is normal. The flashlight has thermal regulation to prevent overheating.
- If it becomes uncomfortably hot, switch to a lower mode.
- A carga non funciona:
- Ensure the USB-C cable is properly connected to both the flashlight and the power source.
- Proba cun cable USB-C ou adaptador de corrente diferente.
- Check the charging indicator light for status (Red for charging, Blue for full, Purple for abnormal).
7. Garantía e soporte
7.1 Información da garantía
For detailed warranty information regarding your ThruNite TN12 Pro flashlight, please refer to the official ThruNite website or the warranty card included with your product. ThruNite typically offers a limited warranty covering manufacturing defects.
7.2 Atención ao cliente
If you require further assistance, have questions not covered in this manual, or need to report a defect, please contact ThruNite customer support through their official website or the contact information provided in your product packaging. Please have your model number (TN12 Pro cw) and purchase date ready when contacting support.
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