Introduction
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
Consignes de sécurité
- Do not point the flashlight directly into eyes. The powerful beam can cause temporary vision impairment.
- Tenir hors de portée des enfants.
- 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.
- Assurez-vous que le cache du port USB-C est bien fermé pour préserver l'étanchéité.
- If the flashlight is not in use for an extended period, unscrew the tube or remove the battery to prevent parasitic drain.
Contenu du colis
- Sofirn SC21 Mini Flashlight
- 16340 Lithium-Ion Battery (800mAh)
- Câble de chargement USB-A vers USB-C
- Clip de poche
- Cordon
- Manuel d'utilisation
- Joints toriques de rechange
Video 1: Unboxing the Sofirn SC21 Mini Small Rechargeable Flashlight, showing all included components.
Installation
1. Installation de la 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. Chargement
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.

Figure 3: USB-C charging port with indicator light.
Mode d'emploi
Fonctionnement de base
- Allume / éteint: Une simple pression sur l'interrupteur latéral permet d'allumer ou d'éteindre la lampe torche.
- 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.
- Mode clair de lune : While OFF, press and hold the switch for 1 second to activate Moonlight mode (1 Lumen).
- Mode Turbo: While ON, double-click the switch to activate Turbo mode (1000 Lumens). Double-click again to return to the previous mode.
- Mode stroboscopique : While ON, triple-click the switch to activate Strobe mode. Triple-click again to return to the previous mode.
- Verrouiller/Déverrouiller : 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.
Indicateur de batterie
The LED indicator on the switch shows the battery status:
- Vert: Battery is good (above 30%).
- Rouge: Battery is low (less than 30%).
- Rouge clignotant : Battery is critical and needs immediate charging.
Caractéristiques spéciales
- Capuchon magnétique arrière : 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.
Entretien
- Nettoyage: Use a clean, soft cloth to wipe the flashlight body. For stubborn dirt, use a damp chiffon. N'utilisez pas de produits chimiques agressifs ou d'abrasifs.
- Lubrification des joints toriques : Lubrifiez périodiquement les joints toriques avec de la graisse silicone pour maintenir l'étanchéité.
- Entretien de la batterie: Charge the battery regularly, even if not in frequent use, to prolong its lifespan. Avoid fully discharging the battery.
- Contacter le nettoyage : If the flashlight experiences poor connection, wipe the spring or the ends of the battery with alcohol to remove any debris.
Dépannage
| Problème | Cause possible | Solution |
|---|---|---|
| La lampe de poche ne s'allume pas. | La batterie est déchargée ou faible. Insulation paper not removed. Capuchon arrière détaché. Le mode de verrouillage est actif. | Chargez la batterie. Remove insulation paper. Serrer le capuchon arrière. Four fast clicks to unlock. |
| La lumière vacille ou s'éteint inopinément. | Mauvais contact de la batterie. Batterie faible. | Nettoyer les contacts de la batterie. Chargez la batterie. |
| Impossible de modifier les modes de luminosité. | Fonctionnement incorrect. | Refer to "Operating Instructions" section for correct button presses. |
Caractéristiques
| Fonctionnalité | Détail |
|---|---|
| Modèle | SC21 |
| Source de lumière | LH351D LED (5000K) |
| Puissance de sortie maximale | 1000 lumens |
| Distance maximale du faisceau | 135 mètres |
| Source d'énergie | 1 batterie lithium-ion 16340 (800 mAh incluse) |
| Port de chargement | USB Type-C |
| Résistance à l'eau | IPX8 (étanche jusqu'à 2 mètres sous l'eau, ne convient pas à la plongée) |
| Résistance aux chocs | 1.5 mètres |
| Matériel | Alliage d'aluminium |
| Dimensions | 3.6 po P x 2.6 po L x 1.6 po H (environ) |
| Poids | 2.29 onces (environ) |
Garantie et assistance
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.
Coordonnées:
- Officiel Website: www.sofirnlight.com
- Boutique Amazon : Boutique Amazon Sofirn





