1. Introdução
Thank you for choosing the sofirn SC21 Mini Flashlight. This compact and powerful LED flashlight is designed for everyday carry (EDC) and various lighting needs, offering high brightness, convenient Type-C recharging, and durable construction. Please read this manual carefully before use to ensure proper operation and maintenance.

Figure 1: Sofirn SC21 Mini Flashlight (Red)

Figure 2: The compact size of the SC21, highlighting its small and lightweight design with dimensions of 22.5mm diameter and 73mm length, weighing 60g.

Figure 3: Key features of the SC21, including Max Output 1000 LM, Max Range 135 M, IPX8 waterproof rating, Type-C Rechargeable, and 90 High CRI 5000K tint.
2. Informações de segurança
- Do not point the flashlight directly at eyes. The powerful beam can cause temporary vision impairment.
- Mantenha fora do alcance de crianças.
- Do not disassemble the flashlight head or battery compartment unless instructed. This may damage the device and void the warranty.
- Use only the specified battery type (16340 Lithium Polymer) and charging method.
- Evite expor a lanterna a temperaturas extremas ou à luz solar direta por períodos prolongados.
- While IPX8 waterproof, this flashlight is not designed for diving. Avoid prolonged submersion beyond specified depth.
3. O que está na caixa
- Sofirn SC21 Mini Flashlight (Red)
- Bateria de polímero de lítio 16340 (pré-instalada)
- Cabo de carregamento USB-A para USB-C
- Pocket Clip (pre-installed)
- Cordão
- Anéis de vedação de reposição
- Manual do usuário
4. Configuração
4.1 Instalação da bateria
The 16340 Lithium Polymer battery is typically pre-installed. If not, unscrew the tail cap, insert the battery with the positive (+) end facing towards the flashlight head, and screw the tail cap back on securely.
4.2 Carregamento
The SC21 features a built-in USB Type-C charging port for convenient recharging. A 5V 1A adapter (not included) is recommended.
- Locate the Type-C charging port on the flashlight body, usually covered by a rubber flap.
- Open the rubber flap and insert the provided USB-A to USB-C charging cable.
- Connect the USB-A end of the cable to a compatible USB power source (e.g., wall adapter, power bank, computer USB port).
- The indicator LED on the switch will flash VERMELHO durante o carregamento.
- Once fully charged, the indicator LED will turn solid VERDE.
- Charging typically takes approximately 1 hour.
- Close the rubber flap securely after charging to maintain water resistance.

Figure 4: The SC21 flashlight connected to a power source via its Type-C USB port for recharging.
5. Instruções de operação
5.1 Operação básica
- Ligar/Desligar: Single click the side switch to turn the flashlight ON or OFF.
- Change Brightness Levels (Stepped Ramppor): When the flashlight is ON, press and hold the side switch to cycle through brightness levels: Moonlight → Low → Medium → High. Release the switch to select the desired level.
- Função de memória: The flashlight will remember the last used brightness level (except for Moonlight, Turbo, Strobe, SOS, and Beacon modes) and turn on at that level.
5.2 Advanced Modes
- Modo Luar: When the flashlight is OFF, press and hold the side switch for 1 second to activate Moonlight mode (1 lumen).
- Modo turbo: Double-click the side switch from any state (ON or OFF) to activate Turbo mode (1000 lumens). Double-click again to return to the previous mode.
- Luz estroboscópica/SOS/Sinalizador: Triple-click the side switch from any state to activate Strobe mode. Triple-click again to cycle through SOS and Beacon modes. Single click to turn off.
- Função de bloqueio: From OFF, four quick clicks of the side switch will activate the electronic lockout. The main LED will flash once to confirm. To unlock, four quick clicks again. When locked, holding the switch will activate Moonlight mode temporarily.

Figure 5: The SC21 providing a super bright and nice beam, illuminating a path up to 135 meters with 1000 lumens and a 5000K 90 High CRI tint.

Figure 6: Visual comparison demonstrating the superior color rendering (90 High CRI) of the 5000K tint, making colors appear more natural and vibrant compared to lower CRI lights.
5.3 Magnetic Tail Cap & Clip
The SC21 is equipped with a strong magnetic tail cap, allowing it to be attached to ferrous metal surfaces for hands-free lighting. The dual-way pocket clip provides versatile carrying options, such as clipping to a pocket, belt, or hat brim.

Figure 7: Demonstrating the utility of the magnetic tail cap for hands-free use, such as attaching to a car hood, and the dual-way clip for securing to a hat.
6. Manutenção
- Limpeza: Limpe o corpo da lanterna com um pano macio e seco.amp cloth. For optical surfaces, use a lens cleaning cloth.
- Lubrificação: Apply a thin layer of silicone grease to the O-rings periodically to maintain water resistance.
- Cuidados com a bateria: Recharge the battery regularly, even if not in frequent use, to prolong its lifespan. Avoid fully discharging the battery.
- Armazenar: If storing the flashlight for an extended period, remove the battery to prevent potential leakage. Store in a cool, dry place.

Figure 8: The SC21's IPX8 waterproof rating ensures reliable performance even in rainy conditions.

Figure 9: The robust construction of the SC21 provides good impact resistance, designed to withstand accidental drops.
7. Solução De Problemas
| Problema | Possível causa | Solução |
|---|---|---|
| A lanterna não liga. | A bateria está fraca ou descarregada. A bateria não foi inserida corretamente. A lanterna está em modo de bloqueio. | Recarregue a bateria. Certifique-se de que a bateria esteja inserida com o polo positivo (+) voltado para a cabeça. Perform 4 quick clicks to unlock. |
| A luz pisca ou se apaga inesperadamente. | Bateria fraca. Tampa traseira solta. Contatos sujos. | Recarregue a bateria. Aperte bem a tampa traseira. Clean battery and flashlight contacts with a clean cloth. |
| Cannot change brightness levels. | Switch not held long enough. Flashlight in a special mode (e.g., Strobe). | Press and hold the switch to ramp brilho. Single click to exit special modes, then try again. |
8. Especificações
| Recurso | Especificação |
|---|---|
| Modelo | SC21 |
| Fonte de luz | LED (LH351D) |
| Brilho Máximo | 1000 Lúmens |
| Distância máxima do feixe | 135 metros |
| Temperatura de cor | 5000K (High CRI) |
| Material | Alumínio |
| Tipo de Bateria | 1 baterias de polímero de lítio 16340 (incluídas) |
| Porta de carregamento | USB Tipo C |
| Resistência à água | IPX8 (2 meters underwater, not for diving) |
| Dimensões | 2.87"D x 0.89"L x 0.89"A (73 mm x 22.5 mm x 22.5 mm) |
| Peso | 2.29 onças (65 gramas) |
| Características especiais | Rechargeable, Magnetic Tail Cap, Pocket Clip |

Figure 10: Detailed performance parameters for the SC21 across various modes (Turbo, High, Medium, Low, Moonlight, Strobe, SOS, Beacon), including luminous flux, runtime, beam distance, and peak intensity.
9. Garantia e Suporte
Sofirn products are manufactured to high-quality standards. For warranty information, technical support, or any inquiries regarding your SC21 Mini Flashlight, please refer to the official Sofirn webAcesse o site ou entre em contato diretamente com o atendimento ao cliente. Guarde o recibo de compra como comprovante para solicitações de garantia.





