Nitecore TM20K Ultra High Performance Tactical Searchlight User Manual
Introduction
The Nitecore TM20K is an ultra-high-performance tactical searchlight designed for demanding situations. It features a maximum output of 20,000 lumens, STROBE READY™ and TurboReady™ capabilities, and USB-C recharging.
Image of the Nitecore TM20K tactical searchlight.
The default setting for the TM20K is Lockout Mode. Please unlock the flashlight before the first use.
Warnings
- The TURBO Brightness Level of 20,000 lumens will produce massive heat rapidly during long-time activation. To avoid overheating and prevent accidental damage, DO NOT activate TURBO repeatedly if the light becomes too hot to handle.
- DO NOT cover the head of the flashlight or put it close to other objects when turned on to avoid accidents.
- DO NOT submerge the flashlight into any liquid when it is hot. Doing so may cause irreparable damage to the light due to the difference of air pressure inside and outside of the tube.
- CAUTION! Possible dangerous radiation! Don't look into the light! May be dangerous for your eyes.
- When the flashlight is kept in the backpack or the holster, please switch to the Lockout Mode.
- Please recharge the product with the original charging cable and a 5V/2A adapter or a QC adapter.
- Please recharge the product before the first use.
- Please recharge the product every 6 months when left unused for a long time.
- The battery is built-in and non-replaceable.
Features
- Utilizes 19 x CREE XP-L2 LEDs with a max output of 20,000 lumens.
- Max peak beam intensity of 22,200cd and max throw of 290 meters.
- Lightweight, rigid and fast cooling tube built from unibody CNC technology.
- Built-in 2 x 21700 rechargeable Li-ion batteries (9,600mAh in total).
- Intelligent Li-ion battery charging circuit with USB-C charging port.
- Ambidextrous tactical buttons specially designed for tactical activities.
- Interchangeable STROBE READY™ (Patent No. ZL201320545349.4) and TurboReady™ settings.
- STROBE Mode uses randomly changing frequencies for stronger dizzying effects.
- Highly efficient constant current circuit provides stable output up to 13 hours.
- Integrated Advanced Temperature Regulation (Patent No. ZL201510534543.6).
- Optical lenses with double-sided scratch resistant coating.
- Constructed from aero grade aluminum alloy.
- HA III military grade hard-anodized finish.
- Waterproof and dustproof rating in accordance with IP68 (2 meters submersible).
- Impact resistant to 1 meter.
- Tail stand capability.
Specifications
Length: 145.5mm (5.73")
Head Diameter: 50mm (1.97")
Tail Dimensions: 50mm×26mm (1.97"×1.02")
Weight: 422g (14.89oz) (Clip Included)
Accessories
- USB-C Charging Cable
- Holster
- Lanyard
Technical Data
| Mode | Brightness | Runtime | Beam Distance | Peak Beam Intensity |
|---|---|---|---|---|
| TURBO | 20,000 Lumens | *45min | 290m | 22,200cd |
| HIGH | 3,100 Lumens | 1h 45min | 270m | 18,500cd |
| MID | 1,900 Lumens | 4h 15min | 260m | 17,100cd |
| LOW | 1,050 Lumens | 13h | 190m | 9,500cd |
| ULTRALOW | 320 Lumens | 30h | 120m | 3,900cd |
| SPOTLIGHT | 1,200 Lumens | 3h | 260m | 17,000cd |
| FLOODLIGHT | 1,800 Lumens | 2h | 73m | 1,340cd |
| STROBE | 20,000 Lumens | ─ | ─ | ─ |
Note: The stated data is measured using 2 x 21700 Li-ion Battery (3.6V 4,800mAh) under laboratory conditions. The data may vary in real world use due to different battery usage or environmental conditions. * The data is tested without temperature regulation.
Operation Controls
The TM20K features several controls:
- Power Button: Used for turning the light on/off (constant or momentary depending on mode).
- Mode Button: Used for cycling through brightness levels and special modes.
- Tactical Buttons: Two buttons on the tail for ambidextrous activation of TURBO or STROBE modes.
- User Mode Selection Toggle Switch (on the back): Switches between Daily Mode (Mode 1) and Tactical Mode (Mode 2).
- USB-C Charging Port: Located on the body for recharging the internal battery.
Charging Function
The TM20K is equipped with an intelligent charging function. Please recharge the flashlight before the first use.
The TM20K supports both Standard Charging Mode and Quick Charging (QC) Mode.
- Uncap the charging port and connect it with a USB adapter (optional accessory) via the USB cable.
- When charging via a QC adapter, the power indicator will flash quickly. When charging via a non-QC adapter, the power indicator will flash slowly.
- When the product is fully charged, the charging process will cease automatically, and the power indicator will be steadily lit.
- When the light is on, connecting a charging cable will automatically turn the light off. The light will return to its previous memorized brightness level when the charging cable is disconnected.
- Charging time in QC Mode is approx. 4 hours 30 minutes. Charging time in Standard Charging Mode is approx. 7 hours 30 minutes (using a 5V/2A adapter).
- When fully charged, the standby time is approx. 12 months.
Lockout / Unlock
Lockout (Default Setting):
- Slide the Toggle Switch to the [lock icon] and wait for 2 seconds to access Lockout Mode.
- In Lockout Mode, activating the flashlight is unavailable. If any button is pressed or the Toggle Switch is moved while in Lockout Mode, the power indicator will flash 5 times quickly to indicate the lockout status.
- When the light is on, accessing the Lockout Mode will automatically turn it off.
Unlock:
- Make sure the Toggle Switch is at the [lock icon] in Lockout Mode.
- Slide the Toggle Switch to "1" or "2" while holding the Mode Button. Release to select the desired user mode.
- The primary light will flash once to indicate the unlock status.
User Mode Selection
The TM20K is available with 2 user modes: Daily Mode (Mode 1) and Tactical Mode (Mode 2). Slide the Toggle Switch on the tail side to switch between different user modes.
- Daily Mode (Mode 1): All brightness levels and special modes are available. The Power Button provides constant-on illumination.
- Tactical Mode (Mode 2): The Power Button provides tactical momentary-on illumination of the memorized brightness level or special mode.
Note: The TM20K has a memory function. When reactivated, it will automatically access the previous memorized brightness level or special mode.
Daily Mode (Mode 1) Operation
On / Off: When the light is off, short press the Power Button to turn it on. When the light is on, short press the Power Button to turn it off.
Brightness Levels: When the light is on, short press the Mode Button to cycle through the following brightness levels: ULTRALOW – LOW – MID – HIGH.
Special Modes (FLOODLIGHT / SPOTLIGHT): When the light is on, press and hold the Mode Button to switch between FLOODLIGHT and SPOTLIGHT. Release to select the desired special mode. When FLOODLIGHT / SPOTLIGHT is on, short press the Mode Button to return to the previously memorized brightness level.
Tactical Mode (Mode 2) Operation
Tactical Momentary-on: When the light is off, press and hold the Power Button to access the previously memorized brightness level. Release to turn it off.
Brightness Levels: While holding the Power Button (for momentary-on), short press the Mode Button to cycle through the following brightness levels: ULTRALOW – LOW – MID – HIGH.
TurboReady™ / STROBE READY™
The TM20K is equipped with 2 Tactical Buttons which perform the same function with ambidextrous activation of TurboReady™ / STROBE READY™. (The default setting is TurboReady™)
- Daily Mode (Mode 1): When the light is on/off, press and hold either Tactical Button to access TURBO / STROBE. Release to return to the previous status.
- Tactical Mode (Mode 2): When the light is off, press and hold either Tactical Button to access TURBO / STROBE. Release to turn it off.
- To switch between TurboReady™ and STROBE READY™ settings: Short press the Mode Button while holding either Tactical Button.
Power Indication
- When the light is off in Daily Mode (Mode 1) / Tactical Mode (Mode 2), short press the Mode Button. The power indicator will flash to show the battery voltage (±0.1V). For example, when the battery voltage is at 4.2V, the power indicator will flash 4 times followed by a 2-second pause and 2 more flashes.
- When the light is on, the power indicator will indicate the battery remaining power:
- Being steadily turned on indicates that the power is above 50%.
- Flashing slowly indicates that the power is below 50%.
- Flashing quickly indicates that the power is below 10%.
Note: The flashlight should be recharged when the output appears to be dim or the light becomes unresponsive due to low power.
Battery voltage indicator: Low power (3.5V), 3.7V, 3.9V, Full power (4.2V).
ATR (Advanced Temperature Regulation)
The integrated ATR technology regulates the output of the TM20K according to the working condition and ambient environment to maintain the optimal performance.
Warranty Service
All NITECORE® products are warranted for quality. Any DOA / defective product can be exchanged for a replacement through a local distributor/dealer within 15 days of purchase. After that, all defective / malfunctioning NITECORE® products can be repaired free of charge within 24 months from the date of purchase. Beyond 24 months, a limited warranty applies, covering the cost of labor and maintenance, but not the cost of accessories or replacement parts.
The warranty will be nullified if:
- The product(s) is/are broken down, reconstructed and/or modified by unauthorized parties.
- The product(s) is/are damaged due to improper use.
For the latest information on NITECORE® products and services, please contact a local NITECORE® distributor or send an email to service@nitecore.com.
Sysmax Innovations Co., Ltd. reserves the rights to interpret and amend the content of this document at any time without prior notice.
Contact Information
SYSMAX Innovations Co., Ltd.
TEL: +86-20-83862000
FAX: +86-20-83882723
E-mail: info@nitecore.com
Web: www.nitecore.com
Address: 24/F, TCL Plaza, No. 18 Haizhou Road, Haizhu District, Guangzhou, 510335, Guangdong, China
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