소개
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
안전 정보
- Do not point the flashlight directly into eyes. The powerful beam can cause temporary vision impairment.
- 어린이의 손이 닿지 않는 곳에 보관하세요.
- 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.
- 방수 기능을 유지하려면 USB-C 포트 덮개가 단단히 닫혀 있는지 확인하십시오.
- If the flashlight is not in use for an extended period, unscrew the tube or remove the battery to prevent parasitic drain.
패키지 내용
- Sofirn SC21 Mini Flashlight
- 16340 Lithium-Ion Battery (800mAh)
- USB-A to USB-C 충전 케이블
- 포켓 클립
- 매는 밧줄
- 사용자 설명서
- 예비 O-링
Video 1: Unboxing the Sofirn SC21 Mini Small Rechargeable Flashlight, showing all included components.
설정
1. 배터리 설치
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. 충전
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.
작동 지침
기본 동작
- 켜기/끄기: 측면 스위치를 한 번 클릭하면 손전등을 켜거나 끌 수 있습니다.
- 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.
- 달빛 모드: While OFF, press and hold the switch for 1 second to activate Moonlight mode (1 Lumen).
- 터보 모드: While ON, double-click the switch to activate Turbo mode (1000 Lumens). Double-click again to return to the previous mode.
- 스트로브 모드: While ON, triple-click the switch to activate Strobe mode. Triple-click again to return to the previous mode.
- 잠금/잠금 해제: 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.
배터리 표시기
The LED indicator on the switch shows the battery status:
- 녹색: Battery is good (above 30%).
- 빨간색: Battery is low (less than 30%).
- 빨간색으로 깜박임: Battery is critical and needs immediate charging.
특별 기능
- 자석식 테일캡: 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.
유지
- 청소: Use a clean, soft cloth to wipe the flashlight body. For stubborn dirt, use a damp 천. 강한 화학 물질이나 연마재를 사용하지 마십시오.
- O-Ring Lubrication: 방수 기능을 유지하려면 주기적으로 O링에 실리콘 그리스를 도포하십시오.
- 배터리 관리 : Charge the battery regularly, even if not in frequent use, to prolong its lifespan. Avoid fully discharging the battery.
- 접촉 청소: If the flashlight experiences poor connection, wipe the spring or the ends of the battery with alcohol to remove any debris.
문제 해결
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 손전등이 켜지지 않습니다. | 배터리가 방전되었거나 부족합니다. Insulation paper not removed. 느슨한 꼬리 모자. Lockout mode is active. | 배터리를 충전하세요. Remove insulation paper. 테일 캡을 조입니다. Four fast clicks to unlock. |
| 전등이 깜빡거리거나 예기치 않게 꺼집니다. | 배터리 접촉 불량. 배터리가 부족합니다. | 배터리 접점을 청소하세요. 배터리를 충전하세요. |
| 밝기 모드를 변경할 수 없습니다. | 잘못된 작동. | Refer to "Operating Instructions" section for correct button presses. |
명세서
| 특징 | 세부 사항 |
|---|---|
| 모델 | SC21 |
| 광원 | LH351D LED (5000K) |
| 최대 출력 | 1000루멘 |
| 최대 빔 거리 | 135 미터 |
| 전원 | 1 x 16340 Lithium-Ion Battery (800mAh included) |
| 충전 포트 | USB 타입-C |
| 방수성 | IPX8 등급 (수심 2미터까지 방수, 다이빙용 아님) |
| 충격 저항성 | 1.5 미터 |
| 재료 | 알루미늄 합금 |
| 치수 | 3.6"D x 2.6"W x 1.6"H (대략) |
| 무게 | 2.29 온스(대략) |
보증 및 지원
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.
연락처 정보:
- 공식적인 Web대지: www.sofirnlight.com
- 아마존 스토어: Sofirn Amazon Store





