1. Introduction
The Sofirn SC03 is a versatile 2-in-1 lighting tool designed for various indoor and outdoor activities. It combines a powerful flashlight with a wide-area lantern, offering flexible illumination options. This manual provides essential information for the safe and effective use of your SC03 device.

Figure 1: Sofirn SC03 2-in-1 Camping Lantern LED Flashlight. This image displays the main product, highlighting its dual functionality as both a focused flashlight and a diffused lantern.
Key Features:
- Dual Functionality: Combines a 2000-lumen flashlight with a 508-meter throw and a 500-lumen 360-degree lantern.
- Rechargeable & Reverse Charging: Built-in USB-C port for convenient charging and power bank functionality.
- Multiple Lighting Modes: Five modes (Low, Medium, High, Turbo, Strobe) for both flashlight and lantern.
- Portable Design: Compact and lightweight for easy carrying and comfortable grip.
- Durable Construction: IPX8 waterproof rating and robust aluminum body for harsh conditions.
2. What's in the Box
Upon unboxing your Sofirn SC03, you should find the following items:
- Sofirn SC03 Flashlight
- 1x 21700 Lithium Polymer Battery (5000mAh)
- USB-C Charging Cable
- Lanyard
- Spare O-rings
- User Manual
Video 1: Sofirn SC03 Lantern Flashlight. This video provides a brief overview of the product and its components as found in the box.
3. Setup
Battery Installation
- Unscrew the tail cap of the flashlight.
- Insert the provided 21700 battery with the positive (+) end facing towards the head of the flashlight.
- Screw the tail cap back on securely.
Charging
The SC03 features a built-in USB-C charging port for convenience. It can be fully charged in approximately 3 hours.
- Locate the USB-C port on the side of the flashlight, protected by a rubber gasket.
- Open the rubber gasket.
- Connect the provided USB-C cable to the flashlight and to a power source (e.g., wall adapter, power bank, computer).
- The power indicator on the side switch will show charging status:
- Flashing Red: 1-9% charge
- Red: 10-39% charge
- Flashing Green: 40-69% charge
- Green: 70-100% charge
- Once fully charged, disconnect the cable and close the rubber gasket to maintain water resistance.
Reverse Charging (Power Bank Function)
In emergencies, the SC03 can charge other devices via its USB-C port.
- Connect a USB-C to C cable (not included) from the SC03 to your device.
- The SC03 will begin charging your device.

Figure 2: Sofirn SC03 Charging and Reverse Charging. This image illustrates how to charge the flashlight and use its reverse charging function to power other devices.
4. Operating Instructions
Power On/Off & Mode Switching
The SC03 features a single side switch for all operations.
- Turn On/Off: Press and hold the side switch for approximately 0.5 seconds. The flashlight will turn on/off in the last used mode (memory function).
- Cycle Brightness Modes: While the light is on, single-click the side switch to cycle through Low, Medium, High, and Turbo modes.
- Switch Between Flashlight/Lantern: Double-click the side switch to toggle between the main flashlight beam and the side lantern illumination.
- Activate Strobe: Triple-click the side switch to activate the Strobe mode (SOS signal).

Figure 3: Sofirn SC03 Flashlight and Lantern Modes. This image demonstrates the two primary lighting modes: a focused flashlight beam and a 360-degree side lantern.

Figure 4: Sofirn SC03 Different Light Modes. This image displays the various brightness levels available for both the long-throw flashlight and the side lantern.
Auto Lockout Mode
The SC03 features an automatic lockout function to prevent accidental activation and conserve battery life. After 1 minute of inactivity, the flashlight will enter lockout mode.
- Unlock: Double-click the side switch to unlock the flashlight.
- Moonlight Mode (from locked): Press and hold the switch to access moonlight mode directly from lockout.

Figure 5: Sofirn SC03 Auto Lockout Mode. This image demonstrates the auto-lock feature, which prevents accidental activation when the flashlight is inactive for one minute.
5. Product Overview
The Sofirn SC03 is constructed from durable aluminum, providing a robust and lightweight design. Its compact size makes it easy to carry and handle.
- Body Material: 6061-T6 aluminum alloy and PC.
- Diffuser: The white diffuser for the lantern mode is made of plastic and screws directly into the light head.
- Reflector: Features an orange peel reflector for a balanced beam of flood and throw.
- Tail Cap: The tail cap has textured details and a lanyard hole for attachment.

Figure 6: Sofirn SC03 Portable Size. This image highlights the compact dimensions and lightweight nature of the flashlight, making it easy to carry.
6. Performance
The SC03 delivers powerful illumination with a maximum output of 2000 lumens and a throw distance of 508 meters for the main flashlight beam. The side lantern provides 500 lumens of 360-degree soft illumination.
Video 2: Sofirn SC03 lantern flashlight for camping. This video demonstrates the flashlight's performance in a camping scenario, showcasing its brightness and utility.
Runtime and Output
The SC03 is designed for sustained output, with intelligent thermal regulation to prevent overheating. The runtime varies depending on the selected brightness mode.
- On Turbo mode (flashlight), the light maintains near 100% output for over 1 minute before stepping down.
- On High mode (flashlight), it holds 100% output for 2 minutes before stepping down to 50%.
- On Medium mode (flashlight), it maintains 100% output throughout the test duration.
- On Turbo mode (side light), it lasts past 1 minute 15 seconds before stepping down to just over 40% output.
- On High mode (side light), it maintains 95-100% output past the 10-minute mark.
7. Specifications
| Feature | Value |
|---|---|
| Special Feature | Portable, Rechargeable |
| Power Source | Battery Powered |
| Light Source Type | LED |
| Material | Aluminum |
| White Brightness | 2000 Lumens |
| Included Components | Battery |
| Product Dimensions | 5.6"D x 1.7"W x 5.6"H |
| Voltage | 3.7 Volts |
| Battery Cell Composition | Polymer |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Water Resistance Level | Waterproof (IPX8) |
| Item Weight | 9.6 ounces |
8. Maintenance
To ensure the longevity and optimal performance of your Sofirn SC03, follow these maintenance guidelines:
- Cleaning: Wipe the flashlight body with a clean, soft cloth. For the lens, use a lens cleaning cloth to avoid scratches.
- O-rings: Regularly inspect the O-rings for wear and tear. Replace them if damaged to maintain the IPX8 waterproof rating. Apply silicone grease to the O-rings periodically to keep them supple.
- Threads: Keep the threads of the tail cap clean and lubricated to ensure smooth operation and proper electrical contact.
- Battery Care: Store the battery in a cool, dry place when not in use. Avoid fully discharging the battery for extended periods.

Figure 7: Sofirn SC03 IPX8 Water Resistance. This image highlights the flashlight's IPX8 waterproof rating, suitable for use in wet conditions.
9. Troubleshooting
If you encounter issues with your SC03, refer to the following common troubleshooting tips:
- Light Not Turning On:
- Check if the battery is inserted correctly with the positive (+) end towards the head.
- Ensure the tail cap is screwed on tightly.
- The flashlight might be in auto lockout mode. Double-click the side switch to unlock it.
- Check battery charge level using the indicator. Recharge if necessary.
- Charging Issues:
- Ensure the USB-C cable is securely connected to both the flashlight and the power source.
- Try a different USB-C cable or power source.
- Verify the charging indicator light is functioning.
- Accidental Activation: The auto lockout mode is designed to prevent this. Ensure the flashlight enters lockout mode after 1 minute of inactivity.
10. Warranty and Support
The Sofirn SC03 comes with a limited warranty. Please refer to the product packaging or contact Sofirn customer support for detailed warranty information and assistance.
- Warranty Type: Limited Warranty
- Customer Support: For any questions or issues, please visit the official Sofirn store or contact their customer service.





