ThruNite TT20 Flashlight User Manual

1. Product Overview

The ThruNite TT20 is a high-performance, USB-C rechargeable flashlight designed for various applications, from daily lighting to outdoor activities. It features a powerful LED, multiple lighting modes, and a durable aluminum alloy construction.

Key Features:

• High Lumens Output: Up to 2010 lumens for powerful illumination.
• Long Beam Distance: Reaches up to 305 meters.
• USB-C Rechargeable: Convenient and fast charging with a built-in USB-C port.
• Dual-Switch Operation: Independent tail switch for momentary/turbo and side switch for mode selection.
• Multiple Lighting Modes: Includes Firefly, Low, Medium, High, Turbo, and Strobe.
• Durable Construction: Made from high-quality aluminum alloy, impact-resistant up to 1.5 meters, and IPX-8 waterproof rating (submersible up to 2 meters).

2. Setup

2.1. Unboxing and Included Components

Upon opening the package, ensure all components are present:

• ThruNite TT20 Flashlight
• Rechargeable Lithium Ion Battery (pre-installed)
• USB-C Charging Cable
• Holster
• Lanyard
• Spare O-rings
• User Manual

2.2. Initial Charging

Before first use, fully charge the flashlight. The TT20 uses a USB-C port for charging.

1. Locate the USB-C charging port on the flashlight body.
2. Connect the provided USB-C cable to the flashlight and a compatible USB power source (e.g., wall adapter, computer USB port).
3. During charging, the indicator light will be RED.
4. Once fully charged, the indicator light will turn BLUE.

3. Operating Instructions

The ThruNite TT20 features a dual-switch design for versatile operation: a tactical tail switch and a side switch.

3.1. Tail Switch Operation

• Momentary On: Lightly press and hold the tail switch for momentary Turbo mode. Release to turn off.
• Constant On/Off (Turbo): Fully press the tail switch to turn the flashlight on/off in Turbo mode.

3.2. Side Switch Operation

When the flashlight is on (via the tail switch or previously turned on with the side switch):

• Turn On/Off: Single press the side switch to turn the light on or off.
• Change Modes: Press and hold the side switch to cycle through Firefly, Low, Medium, and High modes. Release the switch at your desired brightness level.
• Turbo Mode: Double-click the side switch to activate Turbo mode. Double-click again to return to the previous mode.
• Strobe Mode: Triple-click the side switch to activate Strobe mode. Single-click to turn off or double-click to return to the previous mode.
• Memory Function: The flashlight will remember the last used mode (except Turbo and Strobe) when turned off and back on via the side switch.

3.3. Lockout Function

To prevent accidental activation, the TT20 has a lockout function:

• Activate Lockout: When the flashlight is off, press and hold the side switch for approximately 3 seconds until the light briefly flashes. The flashlight is now locked out.
• Deactivate Lockout: Press and hold the side switch for approximately 3 seconds until the light turns on in Firefly mode. The flashlight is now unlocked.

4. Maintenance

Proper maintenance ensures the longevity and optimal performance of your ThruNite TT20 Flashlight.

• Cleaning: Regularly clean the threads and O-rings with a clean cloth. Apply a thin layer of silicone grease to the O-rings periodically to maintain water resistance.
• Battery Care:
  • Avoid over-discharging the battery. Recharge when the indicator turns red or flashing red.
  • If storing the flashlight for an extended period, charge the battery to approximately 50% and remove it from the flashlight to prevent self-discharge and potential damage.
• Contact Points: Ensure the battery contact points and the flashlight's internal contacts are clean and free of debris.

5. Troubleshooting

If you encounter issues with your ThruNite TT20, refer to the following common solutions:

• Flashlight does not turn on:
  • Check if the battery is fully charged.
  • Ensure the battery is inserted correctly with the positive (+) end facing the head of the flashlight.
  • Tighten the tail cap securely. A loose tail cap can prevent electrical contact.
  • Clean the battery contacts and flashlight threads.
  • Deactivate lockout mode if it was previously engaged.
• Light output is dim or flickers:
  • The battery may be low. Recharge the flashlight.
  • Clean the battery contacts.
• Flashlight gets hot quickly on high modes:
  • This is normal for high-output flashlights. The TT20 incorporates thermal regulation to prevent overheating. If it becomes too hot, the output will automatically step down to a lower mode.

6. Specifications

7. Warranty and Support

For detailed warranty information regarding your ThruNite TT20 Flashlight, please refer to the official product packaging or the manufacturer's website. ThruNite typically offers a comprehensive warranty for their products.

If you require technical assistance, have questions about operation, or need to report an issue, please contact ThruNite customer support through their official channels.