1. Introduction
Thank you for purchasing the Sofirn S11C Zoomable Flashlight. This compact and powerful LED torch is designed for versatility, offering a bright 1000 lumen output, a zoomable beam, and convenient USB-C recharging. It's an ideal companion for camping, everyday carry (EDC), running, hunting, and various other outdoor and indoor lighting needs. Please read this manual carefully to ensure proper use and maintenance of your flashlight.
2. Package Contents
Your Sofirn S11C package should include the following items:
- 1 x Sofirn S11C Flashlight
- 1 x 18650 2200 mAh Battery
- 1 x USB Charging Cable (Type-C)
- 1 x Lanyard
- 2 x Spare O-rings
3. Setup
3.1 Battery Installation
- Unscrew the tail cap of the flashlight.
- Insert the included 18650 battery with the positive (+) end facing towards the head of the flashlight.
- Screw the tail cap back on tightly to ensure proper contact and waterproof sealing.
3.2 Initial Charging
Before first use, it is recommended to fully charge the battery.
- Locate the USB-C charging port on the flashlight body, usually covered by a rubber flap.
- Open the rubber flap and connect the provided USB-C cable to the flashlight and a suitable USB power source (e.g., wall adapter, power bank, computer USB port).
- The power indicator light will show the charging status: red for low battery/charging, green for fully charged.
- Once fully charged, disconnect the cable and securely close the rubber flap to maintain water resistance.
3.3 Lanyard Attachment
Attach the lanyard to the designated loop on the tail cap for secure carrying and to prevent accidental drops.
4. Operating Instructions
4.1 Basic Operation
- Turn On/Off: Press the side switch once to turn the flashlight ON or OFF.
- Change Brightness Modes: When the flashlight is ON, press and hold the side switch to cycle through the brightness modes: Moonlight → Low → Medium → High. Release the switch to select the desired mode.
4.2 Zoom Function
The Sofirn S11C features a zoomable beam for adjustable focus.
- To adjust the beam from a wide floodlight to a focused spotlight (or vice versa), simply twist the head of the flashlight (the part above the switch).
- Twist in one direction to 'zoom out' for a wider flood beam.
- Twist in the opposite direction to 'zoom in' for a tighter, more focused throw beam.
4.3 Power Indicator
The flashlight is equipped with a power indicator to show battery status:
- Green Light: Indicates the battery is fully charged or has sufficient power.
- Red Light: Indicates low battery and that charging is required.
5. Maintenance
- Cleaning: Clean the flashlight body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Threads and O-rings: Periodically lubricate the threads and O-rings with silicone grease to maintain water resistance and smooth operation. Replace worn O-rings with the provided spares.
- Battery Care: Store the battery in a cool, dry place. If the flashlight will not be used for an extended period, remove the battery to prevent discharge and potential damage.
- Water Resistance: The S11C is rated IPX6 waterproof, meaning it is protected against powerful water jets. Ensure all caps and covers are securely closed before exposing it to water. It is not designed for submersion.
6. Troubleshooting
- Flashlight does not turn on:
- Ensure the battery is inserted correctly with the positive (+) end towards the head.
- Check if the tail cap is screwed on tightly.
- Charge the battery fully.
- Try a different, fully charged 18650 battery if available.
- Light is dim or flickers:
- The battery may be low. Recharge it.
- Clean the battery contacts and flashlight threads.
- Ensure the tail cap is tightened.
- Charging not working:
- Check the USB-C cable and power source. Try a different cable or adapter.
- Ensure the charging port is clean and free of debris.
7. Specifications
| Feature | Detail |
|---|---|
| LED Emitter | LH351D 5000K LED (10W High Power LED) |
| Working Voltage | 2.8V - 4.2V |
| Dimensions | 113 mm (Length) x 25 mm (Head Diameter) |
| Weight | 49 ± 1 gram (without batteries) |
| Body Material | Aerospace grade 6061 aluminum alloy, hard-anodized anti-abrasive finish |
| Charging | USB-C, 5V 1A input |
| Waterproof Rating | IPX6 |
| Battery Type | 1x 18650 3.7V (Included); Not compatible with 2x CR123A 3V |
| Lighting Distance | 200-500 m |
| Certification | CCC, CE, FCC, ROHS |
| Switch Mode | High/Middle/Low/Moonlight |
| Zoom | Yes (Twist to adjust) |
| Function | Shock Resistant, Hard Light |
7.1 Output and Runtime
| Mode | Output (Lumens) | Runtime |
|---|---|---|
| Moonlight | 1 LM | 30 days |
| Low | 30 LM | 14 hours 44 minutes |
| Medium | 300 LM | 6 hours 17 minutes |
| High | 1000 LM | 3 hours 37 minutes |
8. User Tips
- Battery Management: Always carry a spare charged 18650 battery for extended use, especially during long outdoor activities.
- Zoom for Task: Utilize the zoom function to adapt the beam to your needs. Use flood for wide area illumination (e.g., camping, walking) and spot for long-distance viewing (e.g., searching).
- Magnetic Tail Cap: The S11C features a magnetic tail cap, allowing you to attach it to metal surfaces for hands-free lighting during tasks like car repair or workshop activities.
- EDC Convenience: The compact size and included pocket clip make it easy to carry daily.
9. Warranty & Support
For any questions, issues, or warranty claims regarding your Sofirn S11C flashlight, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
