1. Introduktion
Tak for købetasing the Sofirn SC18 Rechargeable Flashlight. This compact and powerful EDC (Everyday Carry) flashlight is designed for various applications, offering high brightness, convenient USB-C charging, and durable construction. Please read this manual carefully before use to ensure proper operation and maintenance.
2. Sikkerhedsoplysninger
- Øjensikkerhed: Do not shine the flashlight directly into eyes or at other people. The high lumen output can cause temporary vision impairment.
- Børn: Keep out of reach of children to prevent accidental activation or misuse.
- Varme: The flashlight head may become hot during prolonged use at high brightness levels. Exercise caution to avoid burns.
- Batterisikkerhed: Use only the recommended rechargeable battery. Do not disassemble, crush, or expose the battery to extreme temperatures or fire.
- Demontering: Adskil ikke lommelygtehovedet, da dette kan beskadige lyset og ugyldiggøre garantien.
3. Pakkens indhold
Bekræft at alle varer er til stede i din pakke:
- Sofirn SC18 lommelygte
- Genopladeligt batteri (forinstalleret eller separat)
- USB-C ladekabel
- Snor
- Brugermanual

Image: The Sofirn SC18 flashlight shown with its included accessories, typically a USB-C cable, lanyard, and battery.
4. Opsætning
4.1 Batteriinstallation
The Sofirn SC18 typically comes with the battery pre-installed. If not, unscrew the tail cap, insert the 18650 rechargeable battery with the positive (+) end facing towards the head of the flashlight, and then screw the tail cap back on tightly.
4.2 Indledende opladning
Before first use, fully charge the flashlight. The SC18 features a built-in USB-C charging port.
- Locate the rubber cover on the side of the flashlight head.
- Gently pull open the rubber cover to expose the USB-C port.
- Connect the provided USB-C cable to the flashlight and plug the other end into a USB power source (e.g., phone charger, power bank, computer USB port).
- The indicator light on the side switch will show charging status:
- Rød: Opladning
- Grøn: Fuldt opladet
- Once charging is complete, disconnect the cable and firmly close the rubber cover to maintain water resistance.

Image: The Sofirn SC18 flashlight with its USB-C port exposed and connected to a charging cable, illustrating the charging process and battery indicator.
5. Betjeningsvejledning
The Sofirn SC18 uses a single side switch for all operations.
5.1 Grundlæggende betjening
- Tænd/sluk: Klik enkelt på sidekontakten for at tænde eller slukke lyset.
- Skift lysstyrketilstande: While the light is on, press and hold the side switch to cycle through Moon, Low, Medium, and High modes. Release the switch to select the desired mode. The flashlight has a Smart Memory function and will turn on at the last used brightness level (except Turbo and Strobe).

Image: A person holding the Sofirn SC18 flashlight, illuminating a dark path with its powerful 1800 lumen beam, demonstrating its effective beam distance.
5.2 Specialtilstande
- Måneskinstilstand: Fra FRA skal du trykke på sidekontakten og holde den nede i 1 sekund for at aktivere måneskinstilstand.
- Turbo tilstand: Double-click the side switch from any state (ON or OFF) to activate Turbo mode. Double-click again to return to the previously used mode.
- Strobetilstand: Triple-click the side switch from any state (ON or OFF) to activate Strobe mode. Single click to turn off or double-click to return to the previously used mode.
5.3 Spærrefunktion
The lockout function prevents accidental activation, which is useful when carrying the flashlight in a pocket or bag.
- Aktivér spærring: From OFF, quadruple-click the side switch. The main LED will flash twice to indicate lockout is active.
- Deaktiver spærring: Quadruple-click the side switch again. The main LED will flash twice, and the flashlight will turn on in Moonlight mode, indicating lockout is deactivated.

Image: An illustration of the Sofirn SC18 flashlight with a protective shield graphic, demonstrating the safety lock mode feature to prevent accidental activation.
6. Vedligeholdelse
6.1 Rengøring
Rengør lommelygtehuset med en blød,amp cloth. Do not use abrasive cleaners or solvents. Keep the threads and O-rings clean and lubricated with silicone grease to ensure smooth operation and water resistance.
6.2 Vandtæthed
The Sofirn SC18 is rated IP68 waterproof, meaning it is protected against dust ingress and can withstand immersion in water up to 2 meters for 30 minutes. Ensure the USB-C port cover is fully sealed before exposing the flashlight to water.

Image: The Sofirn SC18 flashlight shown in two scenarios: one being splashed with water and another on wet rocks, highlighting its IP68 waterproof and drop-resistant design.
6.3 Pleje af batterier
To prolong battery life, charge the battery regularly and avoid fully discharging it. If the flashlight will not be used for an extended period, remove the battery or activate the lockout function to prevent parasitic drain.
7. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Lommelygten tænder ikke. | Batteriet er dødt eller isat forkert. Lommelygten er i låst tilstand. | Charge the battery or reinsert it with the correct polarity. Deactivate lockout mode (quadruple-click). |
| Lyset flimrer eller slukker uventet. | Lavt batteri. Løs halehue eller hoved. Beskidte kontakter. | Genoplad batteriet. Tighten the tail cap and head. Rengør batteriets kontakter og gevind. |
| Cannot charge the flashlight. | USB-C cable or power source issue. Blokering i opladningsporten. | Prøv et andet USB-C-kabel eller strømadapter. Tjek opladningsporten for snavs. |
8. Specifikationer
| Feature | Detalje |
|---|---|
| Model | SC18 |
| Lyskilde | LED |
| Max output | 1800 lumen |
| Maksimal stråleafstand | 217 meter (712 fod) |
| Strømkilde | 1x 18650 Lithium-Ion Battery (included) |
| Opladning | USB-C genopladelig |
| Vandmodstand | IP68 (up to 2 meters submersible) |
| Drop modstand | 1 meter |
| Materiale | Aluminiumslegering |
| Dimensioner (L x D) | Approx. 10.14 cm x 2.46 cm (3.99" x 0.97") |
| Vægt | Approx. 55g (1.94oz) without battery |

Image: The Sofirn SC18 flashlight displayed next to a smartphone, illustrating its compact size and dimensions (3.99 inches long, 0.97 inches diameter).
Brightness and Runtime Table
| Mode | Output (lumen) | Runtime | Stråleafstand |
|---|---|---|---|
| Måneskin | 3 lm | 230 timer | 11m |
| Lav | 100 lm | 23 timer | 51m |
| Medium | 350 lm | 6.3 timer | 97m |
| Høj | 800 lm | 2.6 timer | 150m |
| Turbo | 1800 lm | 2.3 timer | 217m |
| Strobe | 1800 lm | 5h | - |
Note: Runtimes are approximate and may vary based on environmental conditions and battery age.
9. Garanti og support
The Sofirn SC18 Rechargeable Flashlight comes with a 1 års producentgaranti from the date of purchase, covering defects in materials and workmanship. This warranty does not cover damage caused by misuse, unauthorized modifications, or normal wear and tear.
For warranty claims, technical support, or any questions regarding your product, please contact Sofirn customer service through the retailer where you purchased the product or visit the official Sofirn webwebsted for kontaktoplysninger.
Online ressourcer:
10. Produktvideoer
Sofirn SC18 Product Overview
Video: An official product video from Sofirn showcasing the features and functionality of the SC18 flashlight, including its design, charging, and various light modes.