1. 서론
Thank you for choosing the Nitecore EDC31 Compact EDC Flashlight. This manual provides detailed instructions for the proper use, maintenance, and troubleshooting of your device. Please read this manual thoroughly before operation to ensure optimal performance and safety.

Image 1: Nitecore EDC31 Compact EDC Flashlight. This image displays the flashlight from a front-side angle, highlighting its compact design and textured body.
2. 제품 오버view 및 기능
The Nitecore EDC31 is a high-performance compact flashlight designed for everyday carry and tactical applications. It features advanced technology and robust construction.
주요 특징:
- 주도의: Utilizes a 9-core UHi 20 MAX LED with a maximum output of 3,500 lumens.
- 빔 거리 : Achieves a peak beam intensity of 35,630cd and a maximum throw of 380 meters.
- 밝기 모드: Offers 4 brightness levels, including specialized SEARCH and LUMIN SHIELD modes.
- 배터리: Powered by a built-in 3,800mAh Li-ion battery, providing a runtime of up to 57 hours.
- 충전 중: Features an intelligent Li-ion battery charging circuit with a USB-C charging port.
- 공장 폐쇄: Equipped with a Rapid Lock™ switch for Half Lockout Mode and Full Lockout Mode to prevent accidental activation.
- 건설: Constructed from aluminum alloy with a HA III military-grade hard-anodized finish.
- 내구성: IP68 rated for waterproofing and dustproofing (2 meters submersible) and impact resistant to 2 meters.
- 기술: Incorporates Advanced Power Cut-Off (APC) technology for ultra-low standby power consumption and an Advanced Temperature Regulation (ATR) module.

이미지 2: 이상view of Nitecore EDC31 key features. This image highlights the 9-core UHi 20 MAX LED, Rapid Lock mechanism, LUMIN SHIELD output, and compact design.

Image 3: NiteLab UHi LED technology. This image explains the UHi LED family and its design for optimal lighting effect and beam distance.
3. 설정
3.1 언박싱
패키지를 열면 모든 구성품이 들어 있는지 확인하세요.
- Nitecore EDC31 Flashlight (with built-in battery)
- USB-C 충전 케이블
- Lanyard (if included in your specific package)
- Pocket Clip (pre-installed or included)
3.2 초기 충전
Before first use, it is recommended to fully charge the flashlight. Connect the USB-C charging cable to the flashlight's charging port and a power source (e.g., USB wall adapter, computer USB port). The power indicators will show charging status.
4. 사용 설명서
4.1 Tactical Tail Button Operation
The EDC31 features a tactical tail button for intuitive control:
- 하프 프레스: Adjusts brightness levels or accesses SEARCH mode.
- 전체 보도: Turns the flashlight On/Off or activates LUMIN SHIELD.

Image 4: Tactical Tail Button for intuitive operation. This image illustrates the functions of a half press (brightness adjustment/SEARCH) and a full press (On/Off/LUMIN SHIELD).
4.2 Brightness Levels and Special Modes
The flashlight offers 4 standard brightness levels and two special modes:
- 표준 모드: Cycle through various brightness levels with a half press of the tail button when the light is on.
- SEARCH Mode: From off, half press and hold the Tactical Tail Button to access SEARCH mode (1500 Lumens, 380m range). Release to turn off. Note: SEARCH mode is unavailable in Full Lockout Mode.
- LUMIN SHIELD: From off, full press and hold the Tactical Tail Button to activate LUMIN SHIELD (3500 Lumens). Release to turn off.

Image 5: Tactical SEARCH Mode demonstration. This image shows the flashlight beam reaching 380 meters, illustrating its ultra-long-range coverage.
5. Lockout Modes
The EDC31 features a Rapid Lock™ mechanism to prevent accidental activation:
- 절반 잠금 모드: Slide the Rapid Lock™ to the first position. This prevents accidental full presses but allows access to momentary SEARCH and LUMIN SHIELD modes.
- 완전 잠금 모드: Slide the Rapid Lock™ to the second position. This completely disables all functions of the flashlight, preventing any accidental activation.
- 터놓다: Slide the Rapid Lock™ back to the unlocked position to resume normal operation.

Image 6: Rapid Lock™ for seamless operation. This image provides a close-up view of the Rapid Lock switch, demonstrating its two lockout positions.
6. 충전
The EDC31 is equipped with a built-in 3,800mAh Li-ion battery and a USB-C charging port.
6.1 충전 절차
- 손전등에서 USB-C 충전 포트를 찾으세요.
- Connect the provided USB-C cable to the flashlight and a USB power source.
- 충전 중에는 전원 표시등에 불이 들어와 충전 상태를 보여줍니다.
- Charging is complete when all power indicators are steadily lit.

Image 7: Built-in 3800 mAh Li-ion Battery. This image shows the internal battery, emphasizing its high capacity and USB-C rechargeability.
6.2 Power Level Display
The flashlight features power indicators to display the remaining battery power:
- 4. 상시 켜짐: 75% - 100%
- 3. 상시 켜짐: 50% - 75%
- 2. 상시 켜짐: 25% - 50%
- 1. 상시 켜짐: 0% - 25% (Please charge the product as soon as possible)

Image 8: Power Level Display. This image illustrates the four-segment power indicator lights on the flashlight, showing battery status from 0% to 100%.
7. 유지관리
7.1 청소
손전등 본체를 부드러운 천으로 정기적으로 닦아주세요.amp 렌즈에는 흠집이 생기지 않도록 렌즈 클리닝 천을 사용하십시오. 강한 화학 약품이나 연마제를 사용하지 마십시오.
7.2 방수
The EDC31 is IP68 rated, meaning it is dustproof and submersible to 2 meters. Ensure the USB-C port cover is securely closed before exposing the flashlight to water.
7.3 보관
Store the flashlight in a cool, dry place. For long-term storage, it is recommended to charge the battery to approximately 50% every three months to maintain battery health.
8. 문제 해결
If you encounter issues with your Nitecore EDC31, refer to the following common problems and solutions:
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 손전등이 켜지지 않습니다. | 배터리가 소진되었습니다. 손전등이 잠금 모드에 있습니다. | 배터리를 충전하세요. Disengage the Rapid Lock™ switch. |
| 조명 출력이 어둡거나 깜박입니다. | 배터리가 부족합니다. 접촉 불량. | 배터리를 충전하세요. 꼬리 덮개가 단단히 조여졌는지 확인하십시오. |
| 손전등은 사용 중에 뜨거워집니다. | High brightness mode used for extended periods. | This is normal due to the Advanced Temperature Regulation (ATR) module. Reduce brightness if discomfort occurs. |
| 충전이 시작되지 않습니다. | 케이블이나 전원 문제. 충전 포트 막힘. | 다른 USB-C 케이블이나 전원을 사용해 보세요. 충전 포트에 이물질이 있는지 확인하세요. |
If the problem persists after attempting these solutions, please contact Nitecore customer support.
9. 사양
| 특징 | 사양 |
|---|---|
| 최대 출력 | 3,500루멘 |
| 최대 빔 거리 | 380 미터 |
| 최대 빔 강도 | 35,630cd |
| 최대 런타임 | 57시간 0분 |
| 주도의 | NiteLab UHi 20 MAX (9-core) |
| 반사기 | OP (Orange Peel) |
| 배터리 | 내장형 3,800mAh 리튬이온 배터리 |
| 특수 모드 | LUMIN SHIELD, SEARCH |
| 길이 | 113.2의 mm (4.46 인치) |
| 머리 크기 | 23.0의 mm (0.91 인치) |
| 무게 | 100g(3.53온스) |
| 재료 | Aluminum Alloy (HA III Military Grade Hard-Anodized Finish) |
| 방수 등급 | IP68(2미터 수중) |
| 충격 저항성 | 2 미터 |
| 충전 포트 | USB-C |
10. 보증 및 지원
10.1 제조업체 보증
Nitecore products are covered by a warranty against defects in materials and workmanship. Please refer to the official Nitecore web구체적인 보증 조건 및 기간은 웹사이트 또는 구매 서류를 참조하십시오.
10.2 고객 지원
For technical assistance, warranty claims, or further inquiries, please contact Nitecore customer support through their official web제품을 구매한 사이트 또는 소매업체.





