OLIGHT Seemee 30 C Bike Tail Light and I3T EOS EDC Flashlight User Manual

1. Introduction

This manual provides detailed instructions for the safe and effective use of your OLIGHT Seemee 30 C Bike Tail Light and OLIGHT I3T EOS EDC Flashlight. Please read this manual thoroughly before operation and retain it for future reference.

Image 1.1: The OLIGHT Seemee 30 C Bike Tail Light (left) and OLIGHT I3T EOS EDC Flashlight (right) included in the bundle.

2. Safety Information

Always prioritize safety when using lighting products, especially during outdoor activities. Adhere to the following guidelines:

• Do not shine the light directly into eyes.
• Keep out of reach of children.
• Ensure proper mounting of the bike light to prevent detachment during rides.
• Dispose of batteries responsibly according to local regulations.
• Do not disassemble the products; this may void the warranty and cause damage.

3. Package Contents

Verify that all items are present in your package:

• OLIGHT Seemee 30 C Bike Tail Light
• OLIGHT I3T EOS EDC Flashlight
• USB-C Charging Cable (for Seemee 30 C)
• Mounting Strap (for Seemee 30 C)
• AAA Battery (for I3T EOS)
• User Manual

4. Product Overview

4.1 OLIGHT Seemee 30 C Bike Tail Light

The Seemee 30 C is a compact and bright bike tail light designed for enhanced visibility. It features a 30-lumen output and a wide 230-degree visibility angle, ensuring you are seen from up to 800 meters away. An ambient light sensor automatically adjusts output for optimal performance and battery life.

Image 4.1: A detailed view of the OLIGHT Seemee 30 C Bike Tail Light, highlighting its sleek design and light strip.

Image 4.2: The Seemee 30 C in use on a bicycle, illustrating its visibility and key specifications such as 30 lumens max output, 90 hours max runtime, 260° visibility angle, IPX6 waterproof rating, and 22g weight.

4.2 OLIGHT I3T EOS EDC Flashlight

The I3T EOS is a slim, dual-output Everyday Carry (EDC) flashlight. It delivers up to 180 lumens, powered by a single AAA battery, and utilizes a TIR optic lens for a soft, balanced beam. Its tail switch allows for easy momentary or constant on operation and quick mode changes.

Image 4.3: The OLIGHT I3T EOS EDC Flashlight, showcasing its compact design and pocket clip.

Image 4.4: The I3T EOS flashlight in an engine bay, demonstrating its utility and highlighting its 180 lumens output and TIR optic lens.

5. Setup

5.1 Seemee 30 C Bike Tail Light

1. Charging: Before first use, fully charge the Seemee 30 C. Locate the USB-C charging port (refer to Image 5.1). Connect the provided USB-C cable to the light and a USB power source. The indicator light will show charging status. A full charge takes approximately 2 hours.


Image 5.1: The USB-C charging port of the Seemee 30 C, located under a protective cover.

2. Mounting: Secure the Seemee 30 C to your bicycle's seatpost using the provided mounting strap. Ensure the light is facing directly backward and is firmly attached to prevent movement during your ride.

5.2 I3T EOS EDC Flashlight

1. Battery Installation: Unscrew the tail cap of the I3T EOS. Insert the provided AAA battery with the positive (+) end facing towards the head of the flashlight. Screw the tail cap back on securely.

6. Operating Instructions

6.1 Seemee 30 C Bike Tail Light

• Power On/Off: Press and hold the power button for approximately 1 second to turn the light on or off.
• Mode Selection: With the light on, short press the power button to cycle through the available lighting modes (e.g., constant, flashing). The Seemee 30 C typically offers 3 modes.
• Ambient Light Sensor: The light features an ambient light sensor that automatically adjusts the output based on surrounding conditions to optimize visibility and battery life.

6.2 I3T EOS EDC Flashlight

• Power On/Off & Mode Selection: The I3T EOS operates via its tail switch.


Image 6.1: Demonstrating the easy operation of the I3T EOS tail switch for momentary or constant illumination.

• Momentary On: Soft press the tail switch (without fully clicking) for momentary illumination. Release to turn off.
• Constant On: Deep press the tail switch until it clicks for constant illumination. Press again to turn off.
• Mode Changing: When the light is on (constant mode), quickly turn it off and on again to cycle between the two brightness levels (5 lumens and 180 lumens).

7. Maintenance

• Cleaning: Wipe the lights with a soft, damp cloth to remove dirt and debris. Do not use abrasive cleaners or solvents.
• Battery Care (I3T EOS): If the flashlight will not be used for an extended period, remove the AAA battery to prevent leakage.
• Charging Port (Seemee 30 C): Ensure the USB-C charging port cover is securely closed when not charging to maintain water resistance.
• Storage: Store both lights in a cool, dry place away from direct sunlight and extreme temperatures.

8. Troubleshooting

• Light Not Turning On:
  • Seemee 30 C: Ensure the battery is charged. Connect to a power source and check the charging indicator.
  • I3T EOS: Check if the AAA battery is inserted correctly and has sufficient charge. Ensure the tail cap is fully tightened.
• Dim Output:
  • Seemee 30 C: The ambient light sensor may be adjusting output. Try moving to a darker environment or manually cycling modes. Battery may be low.
  • I3T EOS: Replace the AAA battery.
• Light Flickers:
  • I3T EOS: Clean the battery contacts and ensure the tail cap is tightened. Replace battery if necessary.

If issues persist, contact OLIGHT customer support.

9. Specifications

9.1 OLIGHT Seemee 30 C Bike Tail Light

9.2 OLIGHT I3T EOS EDC Flashlight

10. Warranty and Support

OLIGHT products are covered by a limited warranty. For specific warranty terms and conditions, please refer to the official OLIGHT website or contact their customer service directly. For technical support or inquiries, please visit www.olightstore.com or contact your local distributor.