Introduzione
The Sofirn SC21 is a compact and powerful mini flashlight designed for everyday carry (EDC). Featuring a super bright LH351D LED, USB-C rechargeable battery, and a magnetic tail cap, it offers versatile lighting solutions for various situations. This manual provides detailed instructions for safe and effective use of your SC21 flashlight.

Figure 1: Sofirn SC21 Mini Small Flashlight
Informazioni di sicurezza
- Do not point the flashlight directly into eyes. The powerful beam can cause temporary vision impairment.
- Mantene fora di a portata di i zitelli.
- Do not disassemble the flashlight head or internal components, as this may damage the device and void the warranty.
- Avoid storing the flashlight in direct sunlight or high-temperature environments (e.g., inside a hot car) as this can damage the battery.
- Assicuratevi chì u coperchio di u portu USB-C sia chjusu bè per mantene a resistenza à l'acqua.
- If the flashlight is not in use for an extended period, unscrew the tube or remove the battery to prevent parasitic drain.
Cuntenutu di u pacchettu
- Sofirn SC21 Mini Flashlight
- 16340 Batteria à ioni di litiu (800 mAh)
- Cavo di carica USB-A à USB-C
- Pocket Clip
- Cordino
- Manuale d'usu
- O-rings di riserva
Video 1: Unboxing the Sofirn SC21 Mini Small Rechargeable Flashlight, showing all included components.
Istituisci
1. Installazione di batterie
Before first use, unscrew the tail cap and remove the insulation paper from the battery. Ensure the positive (+) end of the battery faces towards the flashlight head (LED side). Screw the tail cap back on tightly.

Figure 2: Remove insulation paper from the battery before first use.
2. Carica
The SC21 features a built-in USB-C charging port. Open the rubber cover on the side of the flashlight to reveal the port. Connect the provided USB-C cable to the flashlight and a 5V 1A USB power adapter (not included). The indicator LED on the switch will flash RED during charging and turn GREEN when fully charged. Charging typically takes about 1 hour.

Figura 3: Porta di carica USB-C cù indicatore luminosu.
Istruzzioni di funziunamentu
Operazione basica
- Attiva / disattiva: Cliccate una volta nant'à l'interruttore laterale per accende o spegne a torcia.
- Change Brightness Levels (Stepped Mode): While ON, press and hold the switch to cycle through Low, Medium, and High. Release the switch at your desired brightness.
- Modu Moonlight: While OFF, press and hold the switch for 1 second to activate Moonlight mode (1 Lumen).
- Modu Turbo: While ON, double-click the switch to activate Turbo mode (1000 Lumens). Double-click again to return to the previous mode.
- Modu Strobe: While ON, triple-click the switch to activate Strobe mode. Triple-click again to return to the previous mode.
- Lockout/sbloccare: While OFF, four fast clicks of the switch will lock or unlock the flashlight. The light will flash once to confirm lockout/unlock. In lockout mode, pressing the button will only activate Moonlight mode.

Figure 4: The powerful beam of the Sofirn SC21, reaching up to 135 meters.
Indicatore di batteria
The LED indicator on the switch shows the battery status:
- Verde: Battery is good (above 30%).
- Rossu: Battery is low (less than 30%).
- Rossu lampeggiante: Battery is critical and needs immediate charging.
Funzioni spiciali
- Tappu di coda magneticu: The magnetic tail cap allows you to attach the flashlight to any ferrous metal surface for hands-free lighting.
- Dual-Way Pocket Clip: The reversible clip allows for versatile carrying options, including attaching to a pocket, belt, or hat brim.

Figure 5: Magnetic tail cap for hands-free use.
Video 2: Demonstrating the compact size, dual-way clip, and magnetic tail cap of the Sofirn SC21.
Mantenimentu
- Pulizia: Use a clean, soft cloth to wipe the flashlight body. For stubborn dirt, use a damp tela. Ùn aduprate micca chimichi duri o abrasivi.
- Lubrificazione di l'O-Ring: Lubrificate periodicamente l'O-rings cù grassu di silicone per mantene a resistenza à l'acqua.
- Cura di a batteria: Charge the battery regularly, even if not in frequent use, to prolong its lifespan. Avoid fully discharging the battery.
- Pulizia di u cuntattu: Sè a torcia hà una cunnessione debule, asciugate a molla o l'estremità di a batteria cù alcolu per rimuovere qualsiasi detriti.
Risoluzione di prublemi
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| A torcia ùn si accende. | A batteria hè morta o bassa. Insulation paper not removed. Cappellu di coda scioltu. Lockout mode is active. | Caricà a bateria. Remove insulation paper. Stringhje u capu di coda. Four fast clicks to unlock. |
| A luce sfarfalla o si spegne inaspettatamente. | Poor battery contact. Batteria bassa. | Pulite i cuntatti di a batteria. Caricà a bateria. |
| Cannot change brightness modes. | Funzionamentu sbagliatu. | Refer to "Operating Instructions" section for correct button presses. |
Specificazioni
| Feature | Detail |
|---|---|
| Mudellu | SC 21 |
| Fonte di luce | LH351D LED (5000K) |
| Max Output | 1000 lumens |
| Distanza massima di u fasciu | 135 metri |
| Fonte d'energia | 1 x 16340 Lithium-Ion Battery (800mAh included) |
| Portu di carica | USB Type-C |
| Resistenza à l'acqua | IPX8 (up to 2 meters underwater, not for diving) |
| Resistenza à l'impattu | 1.5 metri |
| Materiale | Alloy d'aluminium |
| Dimensioni | 3.6"P x 2.6"L x 1.6"A (circa) |
| Pesu | 2.29 unces (circa) |
Garanzia è Supportu
Sofirn products come with a warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included in your package or visit the official Sofirn website. If you encounter any issues or have questions, please contact Sofirn customer support for assistance.
Informazioni di cuntattu:
- Ufficiale Websitu: www.sofirnlight.com
- Amazon Store: Sofirn Amazon Store





