1. Introduction and Overview
The Nitecore P20iX is a high-performance tactical flashlight designed for various applications including law enforcement, military use, outdoor activities, and emergency situations. This powerful device boasts a 4000-lumen output and a throw distance of up to 241 yards, making it an ideal tool for illumination in demanding environments.
Key features include a dual switch tail cap for single-hand operation and quick access to brightness adjustments and strobe function, USB-C recharging capability, and a durable anodized aluminum construction. The P20iX is part of a power bundle that includes two NL2150HPi batteries (one preinstalled, one backup), an NTH20 holster, a USB-C charging cable, a lanyard, a clip, and a LumenTac organizer.
Figure 1: Nitecore P20iX Power Bundle, including the flashlight, two NL2150HPi batteries, USB-C cable, and holster.
2. Setup
2.1 Package Contents
Verify that all items are present in your package:
- Nitecore P20iX Tactical Flashlight
- Two NL2150HPi 5000mAh Batteries (one preinstalled, one backup)
- NTH20 Holster
- USB-C Charging Cable
- Lanyard
- Clip
- LumenTac Organizer
Figure 2: Included accessories: NL2150HPi batteries and LumenTac Organizer.
2.2 Battery Installation
The P20iX uses NL2150HPi 21700 Lithium-Ion batteries. Ensure correct polarity when inserting batteries. The flashlight comes with one battery preinstalled and one as a backup.
- Unscrew the tail cap of the flashlight.
- Insert the NL2150HPi battery with the positive (+) end facing towards the head of the flashlight.
- Screw the tail cap back on securely.
2.3 Charging the Battery
The P20iX features a USB-C charging port for convenient and fast recharging. Do not attempt to use the P20iX to charge CR123/ICR123 batteries.
- Locate the USB-C charging port cover on the flashlight body.
- Open the cover to expose the USB-C port.
- Connect the included USB-C charging cable to the flashlight and a power source (e.g., USB wall adapter, computer USB port).
- The charging indicator will show the charging status. Once fully charged, disconnect the cable and close the port cover to ensure water and dust resistance.
Figure 3: Close-up of the USB-C charging port on the Nitecore P20iX.
Video 1: An overview of the Nitecore P20iX Flashlight, demonstrating its features including charging and operation.
3. Operating Instructions
3.1 Dual Tail Switch Operation
The P20iX features a dual tail switch design for intuitive single-hand control:
- Tactical Tail Switch: Provides momentary-on and constant-on functions.
- MODE Button: Used for output adjustment and instant access to STROBE/TURBO modes.
Figure 4: Illustration of the dual tail switch design on the Nitecore P20iX, highlighting the Tactical Tail Switch and MODE Button.
3.2 Brightness Modes and Strobe
The P20iX offers multiple brightness levels and a specialized strobe function:
- 6 Brightness Modes: Ranging from Ultralow (2 lumens) to Turbo (4000 lumens).
- Strobe Mode: Instantly accessible by pressing and holding the MODE button. The non-linear strobe patterns are designed for disorienting effects.
Figure 5: Diagram illustrating the two user modes: Daily Mode (Ultralow, Low, Mid, High, Higher, Turbo, Strobe) and Tactical Mode (Turbo, High, Mid, Low, Strobe).
3.3 Memory Function
The flashlight features a memory function that recalls the last used brightness level or mode when reactivated, allowing quick access to your preferred setting.
Figure 6: The memory function allows the flashlight to recall the last used brightness level or mode.
3.4 NTH20 Holster
The included NTH20 holster is a hard, durable accessory compatible with tactical belts and MOLLE systems, providing secure and convenient carrying for your P20iX flashlight.
Figure 7: The NTH20 holster designed for the Nitecore P20iX, shown attached to a tactical belt.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your Nitecore P20iX flashlight.
- Cleaning: Regularly clean the threads and O-rings with a clean cloth. Apply a thin layer of silicone grease to the O-rings periodically to maintain water resistance.
- Battery Care: Store batteries in a cool, dry place. If the flashlight will not be used for an extended period, remove the batteries to prevent leakage.
- Charging Port: Keep the USB-C charging port cover securely closed when not charging to prevent dust and water ingress.
5. Troubleshooting
If you encounter issues with your Nitecore P20iX, try the following troubleshooting steps:
- Flashlight not turning on:
- Ensure the battery is inserted with correct polarity.
- Check if the battery is fully charged.
- Tighten the tail cap securely. A loose tail cap can prevent electrical contact.
- Dim or flickering light:
- The battery may be low. Recharge the battery.
- Clean the battery contacts and the flashlight's internal contacts with a cotton swab dipped in rubbing alcohol.
- Charging issues:
- Ensure the USB-C cable is properly connected to both the flashlight and the power source.
- Try a different USB-C cable or power adapter.
- Verify the power source is active.
If problems persist after attempting these steps, please contact Nitecore customer support or the retailer for further assistance.
6. Specifications
Figure 8: Technical data table for Nitecore P20iX, showing performance with 5000mAh Li-ion battery and 2 x CR123 batteries.
| Feature | Detail |
|---|---|
| Brand | Nitecore |
| Model Number | P20iX |
| Light Source Type | LED (4 x CREE XP-L2 V6 LEDs) |
| Max Brightness | 4000 Lumens |
| Max Throw Distance | 241 Yards (221 meters) |
| Power Source | Battery Powered (NL2150HPi Lithium Ion) |
| Battery Type | 21700 Lithium Ion (NL2150HPi) |
| Max Runtime | 350 hours (on Ultralow mode) |
| Material | Anodized Aluminum |
| Water Resistance Level | IP68 (2 meters submersible) |
| Impact Resistance | 2 meters |
| Product Dimensions | 6.26"D x 1.28"W x 1.1"H (159mm x 32.6mm x 28.5mm) |
| Item Weight | 4.76 Ounces (135g) |
| Special Features | Rechargeable (USB-C), Dual Tail Switch, Strobe Ready, Memory Function, Stainless Steel Impact Bezel |
7. Warranty and Support
Nitecore products are typically covered by a warranty against defects in materials and workmanship. For detailed warranty information, including duration and terms, please refer to the official Nitecore website or contact their customer service directly.
For technical support, product inquiries, or warranty claims, please visit the official Nitecore website or contact the authorized dealer from whom you purchased the product. Keep your purchase receipt as proof of purchase for warranty purposes.
Online Resources:
- Visit the Nitecore Store on Amazon
- Refer to the official Nitecore website for the most up-to-date information and support.





