Introduction
Thank you for choosing the WUBEN L3 Rechargeable LED Flashlight. This manual provides detailed instructions for the safe and efficient operation, maintenance, and troubleshooting of your device. Please read this manual thoroughly before use and retain it for future reference.

Image: The WUBEN L3 flashlight, a compact and durable device.
Safety Information
- Do not shine the flashlight directly into eyes. The high lumen output can cause temporary vision impairment.
- Keep out of reach of children.
- Do not disassemble the flashlight head or body, as this may damage the device and void the warranty.
- Use only the specified battery type and charging methods.
- Avoid exposing the flashlight to extreme temperatures or direct sunlight for prolonged periods.
- Ensure the USB-C port cover is securely closed to maintain IP68 waterproof rating.
Package Contents
Verify that all items are present in your package:
- WUBEN L3 Flashlight
- Charging Cable (USB-C)
- Lanyard
- Belt Clip (pre-installed or included separately)
- Spare O-rings
- User Manual

Image: The WUBEN L3 flashlight and its included accessories: charging cable, lanyard, and spare O-rings.
Setup
1. Initial Battery Preparation
The WUBEN L3 flashlight comes with a pre-installed battery. Before first use, ensure that any protective film or insulator is removed from the battery terminals. The battery is typically installed with a protective cover over the negative end for shipping purposes. Unscrew the tail cap, remove the protective cover, and re-tighten the tail cap securely.
2. Initial Charging
It is recommended to fully charge the flashlight before its first use to ensure optimal performance and battery longevity.
- Locate the USB-C charging port. This is typically found near the head of the flashlight, beneath a screw-off ring or a rubber cover.
- Open the rubber cover or unscrew the ring to expose the USB-C port.
- Connect the provided USB-C charging cable to the flashlight and to a compatible USB power source (e.g., wall adapter, computer USB port).
- The charging indicator light will illuminate (e.g., red for charging, blue for fully charged).
- Charging typically takes approximately 2 hours for a full charge using an 18W power source.
- Once fully charged, disconnect the cable and securely close the USB-C port cover to maintain water resistance.

Image: Illustration of the WUBEN L3 flashlight being charged via its USB-C port, showing the charging indicator.
Operating Instructions
The WUBEN L3 features a tactical tail switch for operation.

Image: A hand wearing a tactical glove holding the WUBEN L3, highlighting the textured tactical tail switch.
Basic Operation
- Momentary On: Half-press and hold the tail switch. Release to turn off. The light will activate in the last used brightness mode.
- Constant On/Off: Fully press the tail switch until it clicks to turn the flashlight on. Fully press again until it clicks to turn off.
Changing Brightness Modes (Low, Med, High, Turbo)
When the flashlight is on (constant on mode):
- Half-press the tail switch repeatedly to cycle through the brightness modes: Low → Med → High → Turbo.
- The flashlight has a memory function and will turn on in the last used brightness mode (excluding Strobe and SOS).
Special Modes (Strobe, SOS)
- Strobe: From the ON state, quickly double half-press the tail switch. Half-press again to return to the previous brightness mode.
- SOS: From the ON state, quickly triple half-press the tail switch. Half-press again to return to the previous brightness mode.
Moonlight Mode
To access Moonlight mode (5 lumens), from the OFF state, half-press and hold the tail switch for approximately 1 second. Release to activate Moonlight mode. This mode is useful for low-light situations where minimal illumination is required.
Charging and Power Bank Function
Charging the Flashlight
The WUBEN L3 features a dual-way USB-C port for convenient charging. Refer to the "Setup" section for detailed charging instructions.
- Input: Max 18W (5V/2A, 9V/2A, or 12V/1.5A).
- Battery Capacity: 4800mAh.
- Charging Time: Approximately 2 hours for a full charge.
Power Bank Function (Discharge Support)
The WUBEN L3 can also function as a power bank to charge other devices in emergency situations.
- Open the USB-C port cover.
- Connect a USB-C to USB-C cable (or appropriate cable) from the flashlight's USB-C port to the device you wish to charge (e.g., mobile phone, walkie-talkie).
- The flashlight will begin to discharge power to the connected device.
- Output: Max 18W.
- Monitor the battery level of both devices.
- Once charging is complete or no longer needed, disconnect the cable and securely close the USB-C port cover.

Image: The WUBEN L3 flashlight connected via USB-C cable to a smartphone, demonstrating its power bank capability.
Maintenance
- Cleaning: Wipe the flashlight with a clean, soft cloth. For stubborn dirt, use a slightly damp cloth. Do not use abrasive cleaners or solvents.
- O-rings: Periodically inspect the O-rings for wear and tear. Replace them with the provided spare O-rings if necessary to maintain the IP68 waterproof rating. Apply a thin layer of silicone grease to the O-rings to ensure a good seal and prevent drying.
- Threads: Keep the threads of the tail cap clean and lubricated.
- Storage: If storing the flashlight for an extended period, charge the battery to approximately 50% and store it in a cool, dry place. Recharge every 3-6 months to prevent deep discharge.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flashlight does not turn on. |
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| Light output is dim or flickers. |
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| Flashlight gets hot quickly on high modes. | High lumen output generates heat. | This is normal. The flashlight has built-in thermal management to prevent overheating by automatically reducing brightness. Use lower modes for extended periods. |
| USB-C charging not working. |
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Specifications
| Feature | Detail |
|---|---|
| Model | L3 |
| Light Source | SST70 LED |
| Maximum Output | 3000 Lumens |
| Beam Distance | Up to 226 meters |
| Peak Beam Intensity | 12800 Candela |
| Battery | 4800mAh Lithium Ion (Integrated) |
| Charging Port | USB-C (Dual-way, Max 18W) |
| Material | CNC-machined Aluminum Alloy, III MIL-Spec anodized finish |
| Water Resistance | IP68 (Submersible up to 2 meters for 1 hour) |
| Impact Resistance | 1 meter |
| Dimensions (L x D) | 140mm x 28mm (5.5" x 1.1") |
| Weight (with battery) | 250g (0.5 lb) |
| Modes | Moon, Low, Med, High, Turbo, Strobe, SOS |
Note: Performance data is based on WUBEN lab tests using a 4800mAh battery. Actual performance may vary due to environmental factors and individual battery conditions.

Image: The WUBEN L3 flashlight illuminating a vast outdoor area at night, demonstrating its 3000 lumens output and 226-meter beam distance.
Warranty and Support
WUBEN provides the following warranty for the L3 Flashlight:
- Flashlight Body: 5-year warranty from the date of purchase.
- Battery: 1-year warranty from the date of purchase.
- Lifetime Repair Services: WUBEN offers lifetime repair services for the flashlight, ensuring long-term usability.
For warranty claims, technical support, or service inquiries, please contact WUBEN customer service through their official website or your point of purchase. Please retain your proof of purchase for warranty validation.





