1. Ifihan
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. Ọja Ipariview ati Awọn ẹya ara ẹrọ
The Nitecore EDC31 is a high-performance compact flashlight designed for everyday carry and tactical applications. It features advanced technology and robust construction.
Awọn ẹya pataki:
- LED: Utilizes a 9-core UHi 20 MAX LED with a maximum output of 3,500 lumens.
- Ijinna tan ina: Achieves a peak beam intensity of 35,630cd and a maximum throw of 380 meters.
- Awọn ọna Imọlẹ: Offers 4 brightness levels, including specialized SEARCH and LUMIN SHIELD modes.
- Batiri: Powered by a built-in 3,800mAh Li-ion battery, providing a runtime of up to 57 hours.
- Gbigba agbara: Features an intelligent Li-ion battery charging circuit with a USB-C charging port.
- Titiipa: Equipped with a Rapid Lock™ switch for Half Lockout Mode and Full Lockout Mode to prevent accidental activation.
- Ikole: Constructed from aluminum alloy with a HA III military-grade hard-anodized finish.
- Iduroṣinṣin: IP68 rated for waterproofing and dustproofing (2 meters submersible) and impact resistant to 2 meters.
- Imọ ọna ẹrọ: Incorporates Advanced Power Cut-Off (APC) technology for ultra-low standby power consumption and an Advanced Temperature Regulation (ATR) module.

Aworan 2: Pariview 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. Eto
3.1 Unboxing
Ni ṣiṣi package, rii daju pe gbogbo awọn paati wa:
- Nitecore EDC31 Flashlight (with built-in battery)
- USB-C Ngba agbara Cable
- Lanyard (if included in your specific package)
- Pocket Clip (pre-installed or included)
3.2 Ni ibẹrẹ idiyele
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. Awọn ilana Iṣiṣẹ
4.1 Tactical Tail Button Operation
The EDC31 features a tactical tail button for intuitive control:
- Half Press: Adjusts brightness levels or accesses SEARCH mode.
- Full Press: 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:
- Standard Modes: 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:
- Ipo Titiipa Idaji: Slide the Rapid Lock™ to the first position. This prevents accidental full presses but allows access to momentary SEARCH and LUMIN SHIELD modes.
- Full Lockout Mode: Slide the Rapid Lock™ to the second position. This completely disables all functions of the flashlight, preventing any accidental activation.
- Ṣii silẹ: 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. Gbigba agbara
The EDC31 is equipped with a built-in 3,800mAh Li-ion battery and a USB-C charging port.
6.1 Ilana gbigba agbara
- Wa ibudo gbigba agbara USB-C lori ina filasi naa.
- Connect the provided USB-C cable to the flashlight and a USB power source.
- The power indicators will illuminate to show the charging status.
- 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 Constant-on: 75% - 100%
- 3 Constant-on: 50% - 75%
- 2 Constant-on: 25% - 50%
- 1 Constant-on: 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. Itọju
7.1 Ninu
Máa fọ ara fìlànà pẹ̀lú ìrọ̀rùn, d déédéé.amp cloth. For the lens, use a lens cleaning cloth to avoid scratches. Do not use harsh chemicals or abrasive materials.
7.2 Waterproofing
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 Ibi ipamọ
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. Laasigbotitusita
If you encounter issues with your Nitecore EDC31, refer to the following common problems and solutions:
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ina filaṣi ko tan. | Batiri ti dinku. Flashlight is in lockout mode. | Gba agbara si batiri. Disengage the Rapid Lock™ switch. |
| Ijade ina jẹ baibai tabi flickers. | Batiri kekere. Olubasọrọ ti ko dara. | Saji si batiri. Ensure the tail cap is tightened. |
| Ina ina maa n gbona nigba lilo. | High brightness mode used for extended periods. | This is normal due to the Advanced Temperature Regulation (ATR) module. Reduce brightness if discomfort occurs. |
| Gbigba agbara ko bẹrẹ. | Ìṣòro okùn tàbí orísun agbára. Ìdènà ibudo gbigba agbara. | Gbiyanju okun USB-C ti o yatọ tabi orisun agbara. Ṣayẹwo ibudo gbigba agbara fun idoti. |
If the problem persists after attempting these solutions, please contact Nitecore customer support.
9. Awọn pato
| Ẹya ara ẹrọ | Sipesifikesonu |
|---|---|
| Ijade ti o pọju | 3,500 Lumens |
| Max tan ina Ijinna | 380 mita |
| Max Beam Intensity | cd 35,630 |
| Max asiko isise | 57 wakati 0 iṣẹju |
| LED | NiteLab UHi 20 MAX (9-core) |
| Olufihan | OP (Orange Peel) |
| Batiri | Batiri Li-ion 3,800mAh ti a ṣe sinu |
| Awọn ipo pataki | LUMIN SHIELD, SEARCH |
| Gigun | 113.2 mm (4.46 inches) |
| Iwọn ori | 23.0 mm (0.91 inches) |
| Iwọn | 100 g (3.53 iwon) |
| Ohun elo | Aluminum Alloy (HA III Military Grade Hard-Anodized Finish) |
| Mabomire Rating | IP68 (mita 2 ti o wa ni inu omi) |
| Atako Ipa | 2 mita |
| Gbigba agbara Port | USB-C |
10. Atilẹyin ọja ati Support
10.1 Olupese ká atilẹyin ọja
Nitecore products are covered by a warranty against defects in materials and workmanship. Please refer to the official Nitecore webaaye tabi iwe rira rẹ fun awọn ofin atilẹyin ọja pato ati iye akoko.
10.2 Onibara Support
For technical assistance, warranty claims, or further inquiries, please contact Nitecore customer support through their official webaaye tabi alagbata lati ọdọ ẹniti o ti ra ọja naa.





