1. Inleiding
The Sofirn C8L is a high-performance rechargeable tactical flashlight designed for various applications including emergency situations, heavy-duty tasks, search operations, and general outdoor use. This manual provides detailed instructions for the safe and effective operation and maintenance of your C8L flashlight.

Image 1.1: The Sofirn C8L Tactical Flashlight, showcasing its robust design and textured grip.

Image 1.2: Illustration of the Sofirn C8L's maximum output of 3100 lumens and a beam range of 531 meters, illuminating a distant landscape at night.
2. Inhoud van het pakket
Controleer of alle artikelen in uw pakket aanwezig zijn:
- 1x Sofirn C8L Flashlight
- 1x USB-oplaadkabel (Type-C)
- 1x Lithium Ion Battery (included inside the flashlight)
- 1x Gebruiksaanwijzing
3. Instellen
3.1 Batterij installatie
The Sofirn C8L flashlight requires one 18650 or 21700 Lithium Ion battery. The included battery is typically pre-installed. To install or replace the battery:
- Schroef de staartdop van de zaklamp los.
- Plaats de batterij met de positieve (+) pool naar de kop van de zaklamp gericht.
- Schroef de staartdop weer stevig vast.
3.2 Eerste keer opladen
Before first use, it is recommended to fully charge the battery. The C8L features a convenient USB-C charging port.
- Zoek de USB-C-oplaadpoort aan de zijkant van de zaklamp, meestal afgedekt met een rubberen klepje.
- Open the rubber flap to expose the port.
- Connect the provided USB-C charging cable to the flashlight and plug the other end into a compatible USB power source (e.g., wall adapter, power bank, computer USB port).
- The indicator light on the side switch will show the charging status: Red indicates charging, Green indicates fully charged.
- A full charge typically takes approximately 3 hours at a maximum charging rate of 2.5A.
- Zodra het opladen voltooid is, koppelt u de kabel los en sluit u het rubberen klepje goed af om de waterdichtheid te behouden.

Image 3.1: The Sofirn C8L flashlight connected via its USB-C port for charging, with an indicator light showing charging status.
4. Gebruiksaanwijzing
The Sofirn C8L features a dual-switch interface for intuitive control: a tactical tail switch and a side switch.
4.1 Schakelfuncties
- Tactische staartschakelaar:
- Partially press for momentary-on (light turns on while pressed).
- Fully press until it clicks to turn the flashlight ON or OFF.
- Zijschakelaar:
- When the flashlight is ON, hold the side switch to cycle through brightness settings (Eco, Low, Medium, High, Turbo).
- Single click to change modes within a brightness group (e.g., from Lighting Mode to Tactical Mode).

Afbeelding 4.1: Close-up view highlighting the side switch and the tactical tail switch of the Sofirn C8L flashlight.
4.2 Brightness Modes and Groups
The C8L offers multiple brightness levels and three distinct mode groups:
- Verlichtingsmodus: Cycles through Eco, Low, Medium, High, Turbo.
- Tactische modus: Offers Medium and Turbo for quick access to powerful illumination.
- Flash-modus: Includes Strobe, SOS, and Beacon for signaling or emergency use.
The flashlight features mode memory, meaning it will turn on in the last used brightness level (except for Strobe, SOS, and Beacon modes).

Image 4.2: Visual representation of the three brightness groups: Lighting Mode, Tactical Mode, and Flash Mode, with their respective settings.

Image 4.3: Depiction of various brightness levels (Eco, Low, Medium, High, Turbo) and special modes (Strobe, SOS, Beacon) with their corresponding lumen outputs.
4.3 Batterijniveau-indicator
The side switch incorporates a battery level indicator to keep you informed of the remaining power:
- Constant groen: Vermogen 70-100%
- Knipperend groen: Vermogen 40-70%
- Constant rood: Vermogen 10-40%
- Knipperend rood: Power <10% (recharge immediately)

Image 4.4: Visual guide to the battery level indicator colors on the side switch, showing constant green, flashing green, constant red, and flashing red states.
5. Onderhoud
Proper maintenance ensures the longevity and optimal performance of your Sofirn C8L flashlight.
- Schoonmaak: Wipe the flashlight body with a clean, soft cloth. For stubborn dirt, use a slightly damp lap. Vermijd schurende reinigingsmiddelen.
- Smering: Breng periodiek siliconenvet aan op de O-ringen en schroefdraad om de waterdichtheid en een soepele werking te behouden.
- batterij zorg: Recharge the battery regularly, especially if the flashlight will not be used for an extended period. Store the flashlight with a partially charged battery (around 50%) if storing for several months.
- Waterbestendigheid: The C8L is rated IPX8 water resistant, meaning it can be submerged up to 2 meters. Ensure all seals (like the USB-C port cover and tail cap) are properly closed and tightened before exposing to water. This rating is for incidental submersion, not for diving.
- Duurzaamheid: Constructed from aerospace-grade aluminum, the C8L is designed to resist scratches, abrasion, and corrosion. Avoid dropping the flashlight from significant heights or subjecting it to extreme impacts.

Image 5.1: The Sofirn C8L flashlight shown in a wet environment, illustrating its IPX8 waterproof rating.

Image 5.2: The Sofirn C8L flashlight positioned under a vehicle tire, demonstrating its robust construction and resistance to pressure.
6. Probleemoplossing
If you encounter issues with your Sofirn C8L flashlight, please refer to the following common problems and solutions:
- De zaklamp gaat niet aan:
- Zorg ervoor dat de batterij correct is geplaatst met de positieve (+) pool naar de kop gericht.
- Controleer of de batterij opgeladen is. Laad hem indien nodig op.
- Tighten the tail cap and head assembly securely. A loose connection can prevent operation.
- Clean the battery contacts and flashlight contacts with a clean cloth.
- De lichtopbrengst is zwak of flikkert:
- De batterij is mogelijk bijna leeg. Laad de batterij op.
- Ensure the battery is fully inserted and contacts are clean.
- Check for any debris in the head or tail cap threads.
- De zaklamp wordt heet tijdens gebruik:
- High brightness modes (especially Turbo) generate significant heat. This is normal. The C8L features Advanced Temperature Regulation (ATR) technology to automatically adjust output to prevent overheating.
- If the flashlight becomes uncomfortably hot, reduce the brightness level.
- USB-C charging not working:
- Zorg ervoor dat de USB-C-kabel volledig in zowel de zaklamp als de stroombron is gestoken.
- Probeer een andere USB-C-kabel of stroomadapter.
- Controleer of de oplaadpoort vrij is van vuil.
7. Specificaties
Detailed technical specifications for the Sofirn C8L Tactical Flashlight:

Image 7.1: A comprehensive table detailing the performance metrics of the Sofirn C8L across various modes, including lumens, beam distance, candela, and runtime.
| Functie | Specificatie |
|---|---|
| Model | C8L-6500K-Kit (C8-001) |
| Lichtbrontype | LED |
| Witte helderheid | Tot 3100-lumen |
| Maximale straalafstand | Tot 531 meter |
| Energiebron | Battery Powered (1x Lithium Ion battery) |
| Samenstelling van batterijcellen | Lithium-ion |
| Oplaadbaar | Yes, USB-C (5V/2.5A) |
| Materiaal | Aluminium van ruimtevaartkwaliteit |
| Waterbestendigheidsniveau | IPX8 (up to 2 meters underwater, not for diving) |
| Productafmetingen | 7"D x 2.5"W x 2.5"H (approx. 17.8 cm x 6.35 cm x 6.35 cm) |
| Artikelgewicht | 14.08 ounces (ongeveer 399 gram) |
| Kleurtemperatuur | 6500 Kelvin |
| Speciale kenmerken | Portable, Rechargeable, Advanced Temperature Regulation (ATR), Mode Memory |

Afbeelding 7.2: Een close-up view of the LED emitter and reflector inside the head of the Sofirn C8L flashlight.

Image 7.3: Illustration comparing the throw beam angle (26 degrees) and flood beam angle (82 degrees) of the Sofirn C8L flashlight.
8. Garantie en ondersteuning
Sofirn products are designed for reliability and performance. For any questions, concerns, or warranty claims, please contact Sofirn customer service. The product package includes a manual and helpful customer service information.
Bewaar uw aankoopbewijs voor eventuele vragen over de garantie.