1. Introduksjon
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. Pakkens innhold
Vennligst sjekk at alle varene er til stede i pakken din:
- 1x Sofirn C8L Flashlight
- 1x USB-ladekabel (Type-C)
- 1x Lithium Ion Battery (included inside the flashlight)
- 1x brukerveiledning
3. Oppsett
3.1 Installasjon av batteri
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:
- Skru av baklokket på lommelykten.
- Insert the battery with the positive (+) terminal facing towards the head of the flashlight.
- Skru halelokket godt på igjen.
3.2 Innledende lading
Before first use, it is recommended to fully charge the battery. The C8L features a convenient USB-C charging port.
- Finn USB-C-ladeporten på siden av lommelykten, vanligvis dekket av en gummiklaff.
- 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.
- Når ladingen er fullført, koble fra kabelen og lukk gummiklaffen godt for å opprettholde vanntettheten.

Image 3.1: The Sofirn C8L flashlight connected via its USB-C port for charging, with an indicator light showing charging status.
4. Bruksanvisning
The Sofirn C8L features a dual-switch interface for intuitive control: a tactical tail switch and a side switch.
4.1 Bryterfunksjoner
- Taktisk halebryter:
- Partially press for momentary-on (light turns on while pressed).
- Fully press until it clicks to turn the flashlight ON or OFF.
- Sidebryter:
- 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).

Bilde 4.1: Nærbilde 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:
- Lysmodus: Cycles through Eco, Low, Medium, High, Turbo.
- Taktisk modus: Offers Medium and Turbo for quick access to powerful illumination.
- Blitsmodus: 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 Batterinivåindikator
The side switch incorporates a battery level indicator to keep you informed of the remaining power:
- Konstant grønn: Effekt 70-100%
- Blinker grønt: Effekt 40-70%
- Constant Red: Effekt 10-40%
- Blinker rødt: 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. Vedlikehold
Proper maintenance ensures the longevity and optimal performance of your Sofirn C8L flashlight.
- Rengjøring: Wipe the flashlight body with a clean, soft cloth. For stubborn dirt, use a slightly damp klut. Unngå skurende rengjøringsmidler.
- Smøring: Påfør silikonfett på O-ringene og skruegjengene med jevne mellomrom for å opprettholde vannmotstand og problemfri drift.
- Batteripleie: 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.
- Vannmotstand: 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.
- Varighet: 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. Feilsøking
If you encounter issues with your Sofirn C8L flashlight, please refer to the following common problems and solutions:
- Lommelykten slår seg ikke på:
- Ensure the battery is correctly inserted with the positive (+) terminal facing the head.
- Sjekk om batteriet er ladet. Lad opp om nødvendig.
- 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.
- Lysutgangen er svak eller flimrer:
- Batterinivået kan være lavt. Lad opp batteriet.
- Ensure the battery is fully inserted and contacts are clean.
- Check for any debris in the head or tail cap threads.
- Lommelykten blir varm under bruk:
- 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-lading fungerer ikke:
- Ensure the USB-C cable is fully inserted into both the flashlight and the power source.
- Prøv en annen USB-C-kabel eller strømadapter.
- Sjekk om ladeporten er fri for rusk.
7. Spesifikasjoner
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.
| Trekk | Spesifikasjon |
|---|---|
| Modell | C8L-6500K-Kit (C8-001) |
| Lyskildetype | LED |
| Hvit lysstyrke | Opptil 3100 Lumens |
| Maksimal stråleavstand | Opp til 531 meter |
| Strømkilde | Battery Powered (1x Lithium Ion battery) |
| Battericellesammensetning | Litiumion |
| Oppladbar | Yes, USB-C (5V/2.5A) |
| Materiale | Aluminium av luftfartskvalitet |
| Vannmotstandsnivå | IPX8 (up to 2 meters underwater, not for diving) |
| Produktdimensjoner | 7"D x 2.5"W x 2.5"H (approx. 17.8 cm x 6.35 cm x 6.35 cm) |
| Varevekt | 14.08 unser (ca. 399 gram) |
| Fargetemperatur | 6500 Kelvin |
| Spesielle funksjoner | Portable, Rechargeable, Advanced Temperature Regulation (ATR), Mode Memory |

Bilde 7.2: Et nærbilde 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. Garanti og støtte
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.
Vennligst ta vare på kjøpsbeviset for eventuelle garantirelaterte spørsmål.