1. Introduktion
The TrustFire J18 LED Flashlight is a high-performance illumination device designed for various applications. This manual provides essential instructions for safe and effective use, setup, operation, and maintenance of your J18 flashlight. Please read this manual thoroughly before using the product.
2. Sikkerhedsoplysninger
- Øjensikkerhed: Lys ikke direkte ind i øjnene med lommelygten. Højintensitetslyset kan forårsage midlertidig synsnedsættelse eller permanent skade.
- Børn: Keep the flashlight and batteries out of reach of children.
- Batteribrug: Use only recommended 18650 or 26650 rechargeable lithium-ion batteries. Ensure correct polarity during installation. Do not mix old and new batteries, or batteries of different types or brands.
- Varme: The flashlight head may become hot during prolonged use, especially on high brightness modes. Exercise caution to prevent burns.
- Vandtæthed: The J18 flashlight is water resistant (IPX4 rated), meaning it can withstand splashes and light rain. It is ikke designet til nedsænkning i vand.
- Demontering: Forsøg ikke at adskille lommelygtehovedet eller andre forseglede komponenter, da dette kan ugyldiggøre garantien og forårsage skade.
3. Pakkens indhold
Tjek venligst pakken for følgende varer:
- TrustFire J18 LED Flashlight
- Extension Tube (for 3-battery configuration)
- Reserve O-ringe
Bemærk: Batterier er ikke inkluderet og skal købes separat.
4. Produktet er slutview
The TrustFire J18 features a robust aluminum alloy construction and multiple lighting modes for versatility.
Nøglefunktioner:
- Høj lysstyrke: Up to 8000 lumens output from 7 LEDs.
- Flere tilstande: High, Medium, Low, Strobe, and SOS.
- Holdbar konstruktion: Made from aircraft-grade aluminum alloy.
- Vandtæt: IPX4 rated for protection against splashing water.
- Fleksibel strøm: Compatible with 2 or 3 18650/26650 batteries.
Komponenter:
The flashlight consists of several main parts:
- Hoved: Contains the 7 LEDs and reflector.
- Kropsrør: Main housing for batteries. An extension tube can be added.
- Halekappe: Indeholder tænd/sluk-knappen.

Billede: Eksploderet view showing the flashlight head, body tube, extension tube, and tail cap.
5. Opsætning
Batteri installation:
The J18 flashlight can operate with either two or three 18650/26650 batteries. Ensure batteries are fully charged before installation.
- Unscrew the tail cap from the body of the flashlight.
- If using three batteries, screw the extension tube onto the main body tube.
- Insert the 18650 or 26650 batteries into the body tube with the positive (+) end facing towards the flashlight head. Ensure correct polarity.
- Screw the tail cap back onto the body tube securely.

Image: Visual guide demonstrating the assembly of the flashlight body and battery insertion.

Image: Comparison of flashlight length with two and three 18650 battery configurations, showing dimensions.
6. Betjeningsvejledning
Tænd/sluk:
To turn the flashlight on or off, firmly press the switch located on the tail cap until it clicks.
Modeskift:
The J18 flashlight features 5 lighting modes: High, Medium, Low, Strobe, and SOS.
- With the flashlight turned on, lightly press the tail cap switch (without clicking) to cycle through the modes.
- Alternatively, a quick twist of the flashlight head may also cycle through modes on some versions.
- The flashlight will typically remember the last used mode when turned off and on again.

Image: Illustration of the five distinct lighting modes and the location of the tail cap switch.
7. Vedligeholdelse
Rensning:
- Tør lommelygtens hus af med en blød kludamp klæde.
- Do not use abrasive cleaners or harsh chemicals, as these can damage the finish or internal components.
- Hold linsen ren for optimal lysudbytte. Brug en linserengøringsklud om nødvendigt.
O-ringe:
- Periodically inspect the O-rings for wear or damage.
- Lubricate O-rings with silicone grease to maintain water resistance.
- Replace damaged O-rings with the provided spares or suitable replacements.
Batteripleje og opbevaring:
- Remove batteries from the flashlight if it will not be used for an extended period to prevent leakage.
- Opbevar batterier på et køligt, tørt sted.
- Recharge batteries regularly to maintain their lifespan.
8. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Lommelygten tænder ikke | Low or depleted batteries Forkert batteriinstallation Løse forbindelser Beskidte kontakter | Genoplad eller udskift batterier Sørg for korrekt polaritet (+/-) Tighten all parts securely Rengør batterikontakterne med en vatpind |
| Lyset flimrer eller er svagt | Lav batteriopladning Løse forbindelser Beskidte kontakter | Genoplad batterierne Tighten all parts securely Rengør batterikontakterne |
| Flashlight gets excessively hot | Prolonged use on High mode Høj omgivelsestemperatur | Skift til en lavere lysstyrketilstand Lad lommelygten køle af |
| Vandindtrængning | Beskadigede eller forkert anbragte O-ringe Submersion beyond IPX4 rating | Inspect and lubricate/replace O-rings Avoid submersion; the flashlight is water resistant, not waterproof |
9. Specifikationer
| Feature | Detalje |
|---|---|
| Mærke | TrustFire |
| Model | J18 |
| Lyskilde | 7 x LED |
| Lysstyrke | Op til 8000 Lumens |
| Lystilstande | Høj, Medium, Lav, Strobe, SOS |
| Materiale | Aircraft-grade Durable Aluminum Alloy |
| Strømkilde | Batteridrevet |
| Batteritype | 2 or 3 x 18650/26650 Lithium-Ion (not included) |
| Voltage | 3.7 volt |
| Vandmodstand | IPX4 (vandtæt) |
| Dimensioner (ca.) | 2.17 x 2.17 x 8.86 inches (55 x 55 x 225 mm with 2 batteries, 320mm with 3 batteries) |
| Vægt (ca.) | 1.39 pounds (630g) without batteries |
10. Garanti og support
Garantioplysninger:
Specific warranty details for the TrustFire J18 LED Flashlight may vary. Please refer to the warranty card included with your purchase or contact the seller/manufacturer directly for detailed warranty terms and conditions.
Kundesupport:
If you encounter any issues or have questions regarding your TrustFire J18 LED Flashlight that are not covered in this manual, please contact TrustFire customer service or your authorized retailer for assistance. Provide your product model and purchase date when seeking support.



