Introducció
The Sofirn SP35 is a high-performance, versatile EDC (Everyday Carry) flashlight designed for various outdoor activities, emergency situations, and general illumination needs. It features a powerful SST40 LED, USB-C rechargeable battery, and multiple brightness modes, making it a reliable tool for camping, hiking, hunting, fishing, and more.

Image: The Sofirn SP35 flashlight, showcasing its compact design and side switch.
Què hi ha a la caixa
- 1 x Sofirn SP35 Flashlight
- 1 x 21700 Lithium Ion Battery (inserted)
- 1 x cable de càrrega USB-C
- 1 x Manual d'usuari
Configuració
Initial Use: Battery Preparation
Before first use, the insulating paper must be removed from the battery compartment. Follow these steps:
- Desenrosqueu la tapa de la cua de la llanterna.
- Remove the insulating paper located between the battery and the spring.
- Torneu a enroscar la tapa de la cua de manera segura.

Image: Diagram showing how to unscrew the tail cap and remove the insulation paper from the battery.
Carregant la bateria
The Sofirn SP35 features a convenient USB-C charging port. To charge the flashlight:
- Connecteu el cable USB-C proporcionat al port de càrrega de la llanterna.
- Connect the other end of the cable to a 5V/2A USB power adapter (not included).
- The switch LED will flash red during charging and turn steady green when charging is complete. A full charge takes approximately 3 hours.

Image: Close-up of the Sofirn SP35 showing the USB-C charging port.
Instruccions de funcionament
Funcionament bàsic
- Activar/Desactivar: Single click the side switch to turn the flashlight on or off.
- Change Brightness Modes: When the flashlight is on, press and hold the side switch to cycle through Eco, Low, Medium, and High modes. Release the switch to select the desired mode.
- Mode turbo: Double-click the side switch from any mode (on or off) to activate Turbo mode (2000 lumens). Double-click again to return to the previous mode.
- Mode estroboscòpic: Triple-click the side switch from any mode (on or off) to activate Strobe mode. Triple-click again to cycle through SOS and Beacon modes. Single click to return to the previous mode.
- Funció de bloqueig: From OFF, four quick clicks will activate the lockout function. The main LED will flash once to confirm. To unlock, four quick clicks again.

Image: Illustration demonstrating the different brightness levels (Low, Medium, High, Turbo) of the Sofirn SP35 flashlight.
Advanced Temperature Regulation (ATR)
The SP35 incorporates ATR technology, which automatically adjusts the brightness level when the driver temperature reaches 55°C (131°F) to prevent overheating. This ensures stable performance and extends the lifespan of the flashlight. Once the temperature decreases, the brightness will automatically increase again.
Indicador d'alimentació
The LED indicator on the side switch provides real-time battery status:
- Verd sòlid: Battery is between 50% and 100% charged.
- Vermell sòlid: Battery is between 25% and 49% charged.
- Vermell intermitent: Battery is below 25% charged and needs recharging.
Manteniment
- Clean the threads and O-rings regularly with a clean cloth. Lubricate them with silicone grease to maintain water resistance.
- If the flashlight is not used for an extended period, remove the battery to prevent leakage.
- Guardeu la llanterna en un lloc fresc i sec, lluny de la llum solar directa i de temperatures extremes.
- Avoid dropping the flashlight or subjecting it to strong impacts, as this may damage internal components.

Image: The Sofirn SP35 flashlight submerged in water, demonstrating its IPX8 water resistance rating.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La llanterna no s'encén | Battery not inserted correctly or insulating paper not removed. | Ensure battery is inserted with positive (+) end towards the head. Remove insulating paper if present. |
| Flashlight flickers or turns off unexpectedly | Low battery, loose tail cap, or dirty contacts. | Recharge the battery. Tighten the tail cap. Clean battery contacts and threads. |
| Cannot change brightness modes | La llanterna està en mode de bloqueig. | Triple-click the side switch to exit lockout mode. |
| Flashlight gets hot quickly | Operating in Turbo mode for extended periods. | This is normal due to ATR (Advanced Temperature Regulation). The flashlight will reduce brightness to prevent damage. Reduce brightness manually if desired. |
Especificacions
| Característica | Detall |
|---|---|
| Model | SP35-6500K |
| Font de llum | SST40 LED |
| Brillantor màxima | 2000 lúmens |
| Distància màxima del feix | 332 metres (1089 peus) |
| Font d'alimentació | 1 x 21700 Lithium Ion Battery (included) |
| Port de càrrega | USB-C |
| Temps de càrrega | Approx. 3 hours (with 2A adapter) |
| Temps d'execució màxim | 7 hours (on Medium mode, 400LM) |
| Resistència a l'aigua | IPX8 (Submersible up to 2 meters for 30 minutes) |
| Material | Aliatge d'alumini de grau aeroespacial |
| Dimensions | 5.04 "P x 1.1" W x 1.1" H |
| Pes | 220 grams (7.8 unces) |
Garantia i suport
Sofirn provides a 1-year warranty for the SP35 flashlight from the date of purchase. This warranty covers manufacturing defects and workmanship. It does not cover damage caused by misuse, unauthorized modification, or normal wear and tear.
For technical support, warranty claims, or any inquiries, please contact Sofirn customer service through their official website or the platform where you purchased the product. Please have your purchase receipt and product model number ready.
Per a més informació, visiteu l'oficial Sofirn Store on Amazon.





