Introduction
The Sofirn SC21 is a compact and powerful mini flashlight designed for everyday carry (EDC). Featuring a super bright LH351D LED, USB-C rechargeable battery, and a magnetic tail cap, it offers versatile lighting solutions for various situations. This manual provides detailed instructions for safe and effective use of your SC21 flashlight.
Figure 1: Sofirn SC21 Mini Small Flashlight
Safety Information
- Do not point the flashlight directly into eyes. The powerful beam can cause temporary vision impairment.
- Keep out of reach of children.
- Do not disassemble the flashlight head or internal components, as this may damage the device and void the warranty.
- Avoid storing the flashlight in direct sunlight or high-temperature environments (e.g., inside a hot car) as this can damage the battery.
- Ensure the USB-C port cover is securely closed to maintain water resistance.
- If the flashlight is not in use for an extended period, unscrew the tube or remove the battery to prevent parasitic drain.
Package Contents
- Sofirn SC21 Mini Flashlight
- 16340 Lithium-Ion Battery (800mAh)
- USB-A to USB-C Charging Cable
- Pocket Clip
- Lanyard
- User Manual
- Spare O-rings
Video 1: Unboxing the Sofirn SC21 Mini Small Rechargeable Flashlight, showing all included components.
Setup
1. Battery Installation
Before first use, unscrew the tail cap and remove the insulation paper from the battery. Ensure the positive (+) end of the battery faces towards the flashlight head (LED side). Screw the tail cap back on tightly.
Figure 2: Remove insulation paper from the battery before first use.
2. Charging
The SC21 features a built-in USB-C charging port. Open the rubber cover on the side of the flashlight to reveal the port. Connect the provided USB-C cable to the flashlight and a 5V 1A USB power adapter (not included). The indicator LED on the switch will flash RED during charging and turn GREEN when fully charged. Charging typically takes about 1 hour.
Figure 3: USB-C charging port with indicator light.
Operating Instructions
Basic Operation
- Turn ON/OFF: Single click the side switch to turn the flashlight ON or OFF.
- Change Brightness Levels (Stepped Mode): While ON, press and hold the switch to cycle through Low, Medium, and High. Release the switch at your desired brightness.
- Moonlight Mode: While OFF, press and hold the switch for 1 second to activate Moonlight mode (1 Lumen).
- Turbo Mode: While ON, double-click the switch to activate Turbo mode (1000 Lumens). Double-click again to return to the previous mode.
- Strobe Mode: While ON, triple-click the switch to activate Strobe mode. Triple-click again to return to the previous mode.
- Lockout/Unlock: While OFF, four fast clicks of the switch will lock or unlock the flashlight. The light will flash once to confirm lockout/unlock. In lockout mode, pressing the button will only activate Moonlight mode.
Figure 4: The powerful beam of the Sofirn SC21, reaching up to 135 meters.
Battery Indicator
The LED indicator on the switch shows the battery status:
- Green: Battery is good (above 30%).
- Red: Battery is low (less than 30%).
- Blinking Red: Battery is critical and needs immediate charging.
Special Features
- Magnetic Tail Cap: The magnetic tail cap allows you to attach the flashlight to any ferrous metal surface for hands-free lighting.
- Dual-Way Pocket Clip: The reversible clip allows for versatile carrying options, including attaching to a pocket, belt, or hat brim.
Figure 5: Magnetic tail cap for hands-free use.
Video 2: Demonstrating the compact size, dual-way clip, and magnetic tail cap of the Sofirn SC21.
Maintenance
- Cleaning: Use a clean, soft cloth to wipe the flashlight body. For stubborn dirt, use a damp cloth. Do not use harsh chemicals or abrasives.
- O-Ring Lubrication: Periodically lubricate the O-rings with silicone grease to maintain water resistance.
- Battery Care: Charge the battery regularly, even if not in frequent use, to prolong its lifespan. Avoid fully discharging the battery.
- Contact Cleaning: If the flashlight experiences poor connection, wipe the spring or the ends of the battery with alcohol to remove any debris.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flashlight does not turn on. | Battery is dead or low. Insulation paper not removed. Loose tail cap. Lockout mode is active. | Charge the battery. Remove insulation paper. Tighten tail cap. Four fast clicks to unlock. |
| Light flickers or turns off unexpectedly. | Poor battery contact. Low battery. | Clean battery contacts. Charge the battery. |
| Cannot change brightness modes. | Incorrect operation. | Refer to "Operating Instructions" section for correct button presses. |
Specifications
| Feature | Detail |
|---|---|
| Model | SC21 |
| Light Source | LH351D LED (5000K) |
| Max Output | 1000 Lumens |
| Max Beam Distance | 135 Meters |
| Power Source | 1 x 16340 Lithium-Ion Battery (800mAh included) |
| Charging Port | USB Type-C |
| Water Resistance | IPX8 (up to 2 meters underwater, not for diving) |
| Impact Resistance | 1.5 Meters |
| Material | Aluminum Alloy |
| Dimensions | 3.6"D x 2.6"W x 1.6"H (approx.) |
| Weight | 2.29 ounces (approx.) |
Warranty and Support
Sofirn products come with a warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included in your package or visit the official Sofirn website. If you encounter any issues or have questions, please contact Sofirn customer support for assistance.
Contact Information:
- Official Website: www.sofirnlight.com
- Amazon Store: Sofirn Amazon Store
