The Nitecore TM39 is the upgrade from the powerhouse TM38, but now with even more punch from the upgraded Luminous SBT-90 GEN2 LED that has a super impressive output of 5200 lumens, which is an increase of 3400 lumens on its predecessor, and the LED is set deep in a polished reflector for an astonishing maximum range of 1500 metres.
When the battery pack is connected to the head, the integrated multi-functional OLED display with light up and read 'NITECORE' followed by the voltage and battery level before going off and entering standby. Once the torch is turned on the OLED shows the user the current status of the torch by displaying the lumen output, brightness level, beam distance, battery voltage, battery level, remaining run-time and even the temperature of the torch. The stats will be displayed for 30 seconds before the screen turns off, whic can be reactivated at any time by a single press of the mode button.
It features the NBP68HD rechargeable battery pack that is equivalent to 8 x 3400 mAh lithium-ion batteries and can be charged while attached to the torch via the charging port on the head of the TM39, or independently via the 2 A (3.5 mm) charging port on the end of the battery using the included UK mains adaptor.
If charging via the port on the torch the OLED screen will display the battery voltage and the battery level via a battery shaped symbol, then once charging is complete the voltage will read 4.2 V and show a full battery. If charging via the 2 A port on the end of the battery the blue charging indicator will flash rapidly, then flash slowly when at 98% before going solid when the battery is fully charged. Using the included plug charging takes around 15 hours.
There is also a second larger 4 A (4.0 mm) charging port on the base of the battery that charges the battery faster using a separately purchased Nitecore charging adaptor for rapid charging, and charges the battery in approximately 8 hours.
The light is operated with two buttons on the head of the torch, with the bottom power button turning the light on and off with a single press. Once the light is turned on, and the OLED screen is on, the top mode button will cycle through the brightness levels in the order of low, mid and high, however if the screen is off, firstly press the mode button to turn it on and then continue to press to cycle the modes. The last used brightness level will be remembered the next time the torch is turned on.
Turbo is activated with the torch on or off by holding down the mode button. Direct access to low can be achieved by holding down the power button while the light is off, which is useful when a higher setting may be memorised and you require a lower output. Three special modes are also available and can be accessed by double pressing the power button with the light on to enter strobe, and then the mode button can be used to cycle through strobe, SOS and beacon.
A handy lockout feature prevents accidental activation which is achieved by holding down the power button while the torch is on and the light will flash once and the screen will display 'LOCK'. To exit lockout hold down both the power and mode buttons.
Other features include a tripod mounting port, which allows the TM39 to be set on a standard tripod, a shoulder carry strap to free up your hands and a built-in thermal protection circuit.
Please Note: Turbo and high modes are not recommended to be used for extended periods of time as they generate heat that may be uncomfortable for the user. The thermal protection will automatically lower the output of the torch if the internal temperature reaches 60°C or higher to prevent the torch from overheating and to protect the LED. Do not submerge a heated torch in water as this could cause irreparable damage.
Thermal protection circuit prevents overheating
Intelligent charging circuit ensures safe charging process
Multi-functional OLED displays torch stats
Dual side switch controls 4 brightness levels and 3 special modes
Optimal heat dissipation to improve overall performance
Turbo: 5200 lumens; 1 hour, 30 minutes run-time; 1500 m beam range*
High: 2000 lumens; 4 hours run-time; 950 m beam range*
Mid: 800 lumens; 10 hours run-time; 600 m beam range
Low: 200 lumens; 36 hours run-time; 300 m beam range
Strobe/SOS/Beacon: 5200 lumens
Note: *The run-time for turbo and high is measure without the thermal temperature regulation active.
Tested to ANSI/PLATO FL 1-2019 standards in laboratory conditions using the included NBP68HD lithium-ion battery. The data may vary slightly in real world use depending on battery type, individual usage habits and environmental factors.
Type: Search and rescue LED torch
Operating Modes: Low / Mid / High / Turbo / Strobe / SOS / Beacon
Luminous Flux: Up to 5200 lumens
Lamp Type: Luminous SBT-90 GEN2 LED
Beam Range: Up to 1500 m
Batteries Required: Nitecore NBP68HD battery pack (included)
Overall Length: 276 mm
Head Diameter: 90 mm
Barrel Diameter: 50 mm
Weight: 1361 grams (including battery pack)
Body Colour: Black
Body Material: Constructed from aerospace grade aluminium alloy
Body Finish: HA III military grade hard anodised
Switch Type: Side mounted push button
Impact Resistance: 1 m
Environmental: Waterproof and dust resistant to IP68 standard (2 m)
Warranty: 5 years (torch), 1 year (battery pack)
Regulatory Compliance: CE / RoHS
Packaging and Contents
Supplied in a retail box and contains:
Nitecore TM39 LED torch x 1
Nitecore NBP68HD lithium-ion battery pack x 1
Shoulder strap x 1
Wrist lanyard x 1
Spare O-ring x 1
Spare dust cover for charging port x 1
UK mains charger x 1
Manual x 1