1. Танилцуулга
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. Аюулгүй байдлын мэдээлэл
- Do not point the flashlight directly at eyes. The powerful beam can cause temporary vision impairment.
- Хүүхдийн гар хүрэхгүй газар хадгална.
- 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.
- Гар чийдэнг хэт өндөр температур эсвэл нарны шууд тусгалд удаан хугацаагаар байлгахаас зайлсхий.
- While IPX8 waterproof, this flashlight is not designed for diving. Avoid prolonged submersion beyond specified depth.
3. Хайрцагт юу байна
- Sofirn SC21 Mini Flashlight (Red)
- 16340 Lithium Polymer Battery (pre-installed)
- USB-A-аас USB-C хүртэлх цэнэглэгч кабель
- Pocket Clip (pre-installed)
- оосор
- Сэлбэг O-цагираг
- Хэрэглэгчийн гарын авлага
4. Тохиргоо
4.1 Батерей суурилуулах
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 Цэнэглэж байна
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 УЛААН цэнэглэж байх үед.
- Once fully charged, the indicator LED will turn solid НОГООН.
- Цэнэглэх нь ихэвчлэн ойролцоогоор 1 цаг зарцуулдаг.
- Усны хамгаалалтыг хадгалахын тулд цэнэглэсний дараа резинэн хавхлагыг сайтар хаа.

Figure 4: The SC21 flashlight connected to a power source via its Type-C USB port for recharging.
5. Ашиглалтын заавар
5.1 Үндсэн үйл ажиллагаа
- Асаах/унтраах: Single click the side switch to turn the flashlight ON or OFF.
- Change Brightness Levels (Stepped Ramping): 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.
- Санах ойн функц: 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 Дэвшилтэт горимууд
- Сарны гэрлийн горим: When the flashlight is OFF, press and hold the side switch for 1 second to activate Moonlight mode (1 lumen).
- Турбо горим: 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.
- Strobe/SOS/Beacon: 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.
- Түгжих функц: 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. Засвар үйлчилгээ
- Цэвэрлэгээ: Гар чийдэнгийн их биеийг зөөлөн, damp даавуу. Оптик гадаргуугийн хувьд линз цэвэрлэх даавууг ашиглана.
- Тосолгоо: Усны эсэргүүцлийг хадгалахын тулд O-цагираг дээр үе үе нимгэн силикон тос түрхээрэй.
- Батерейны арчилгаа: Recharge the battery regularly, even if not in frequent use, to prolong its lifespan. Avoid fully discharging the battery.
- Хадгалах: Хэрэв гар чийдэнг удаан хугацаагаар хадгалах юм бол алдагдахаас сэргийлж зайгаа салга. Хуурай сэрүүн газар хадгална.

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. Алдаа засах
| Асуудал | Боломжит шалтгаан | Шийдэл |
|---|---|---|
| Гар чийдэн асахгүй байна. | Батерей бага эсвэл дуусч байна. Батерейг зөв оруулаагүй байна. Гар чийдэн түгжих горимд байна. | Зайгаа цэнэглэ. Батерейг эерэг (+) үзүүрийг толгой руу чиглүүлсэн эсэхийг шалгаарай. Perform 4 quick clicks to unlock. |
| Гэрэл анивчих эсвэл гэнэт унтарна. | Батерей бага. Сул сүүлний малгай. Бохир контактууд. | Зайгаа цэнэглэ. Сүүлний тагийг сайтар чангал. Батерей болон гар чийдэнгийн контактуудыг цэвэрхэн даавуугаар арчина. |
| Cannot change brightness levels. | Switch not held long enough. Flashlight in a special mode (e.g., Strobe). | Press and hold the switch to ramp тод байдал. Single click to exit special modes, then try again. |
8. Техникийн үзүүлэлтүүд
| Онцлог | Тодорхойлолт |
|---|---|
| Загвар | SC21 |
| Гэрлийн эх үүсвэр | LED (LH351D) |
| Хамгийн их гэрэлтүүлэг | 1000 люмен |
| Хамгийн их цацрагийн зай | 135 метр |
| Өнгөний температур | 5000K (High CRI) |
| Материал | Хөнгөн цагаан |
| Зайны төрөл | 1 x 16340 Lithium Polymer (included) |
| Цэнэглэх порт | USB Type-C |
| Усны эсэргүүцэл | IPX8 (2 meters underwater, not for diving) |
| Хэмжээ | 2.87"D x 0.89"W x 0.89"H (73мм x 22.5мм x 22.5мм) |
| Жин | 2.29 унц (65 грамм) |
| Онцлог шинж чанарууд | 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. Баталгаат хугацаа ба дэмжлэг
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 webсайт эсвэл харилцагчийн үйлчилгээтэй шууд холбогдоно уу. Худалдан авалтын баримтаа баталгаат нэхэмжлэлд зориулж худалдан авалтын баталгаа болгон хадгална уу.





