Thrunite TN42 V2 (unboxing, comparisons and maintence)

Thrunite TN42v2 SBT90.2 Thrower
(unboxing, comparisons and maintenance)
Thrunite TN42v2 affiliate link Free shipping on order over $49.95. Use code THRUNITE to save 5% save $69
Specifications (copy & paste with comments)

LED: 1x SBT90 LED.
TN42 V2 Runs on: 4*4000mAh IMR 21700
--> Use 1, 2, 3 or all 4 batteries in parallel
--> Any 21700 with similar length as the included Thrunite 21700 battery will work
Working voltage: 2.5V-4.2V
Charging current/voltage: 8.4V, 4A.
--> The included wall charger charges at @2A. I got up to 3A using my own charger and cable

Output & Runtime (Tested with ThruNite batteries and for Cool White):
Strobe(3,996 lumens / 4hrs),
Turbo(4,848 lumens~1,737 lumens / 125 sec + 160 mins),
High(1,863 lumens / 3 hrs),
Medium(425 lumens / 15 hrs),
Low(80 lumens / 82 hrs),
Firefly (1 lumens / 180 days).
--> Usable with a uniform hotspot starting at about 6ft away from a wall.
Peak beam intensity: 864,000cd.
--> Compared to other throwers, this one has a larger hotspot thanks to the SBT90.2 LED.
Max beam distance: 1,860 meters / 2,034 yards.
Power interface: USB C charging port.
--> Not just for convenience, but for charging speed :-)
Waterproof to IPX-8 Standard (2 meters).
Impact resistant: 1.5 meter.
Dimensions: 190.5mm*105mm*57mm.
Weight: 648g (battery excluded)
--> For reduced weight, use less than 4 21700 battery at the cost of runtime.
Accessories: THRUNITE 4000mAh IMR 21700 Battery*4, USB-C Power Adapter*1, Shoulder Strap*1, Strap Ring*1, Spare O-ring*2, Side Switch Cap*1, Rubber Cover*2
--> See video for USB port cover and switch cover replacement instructions.


Turn On/Off
Press the side switch to turn the light on/off.
Change Mode
When the light is on, long press the side switch to cycle through low, medium and high.
Shortcut to firefly: When the light is off, long press the side switch to get firefly mode.
Double click to turn to turbo from any mode and triple click to get strobe.
Memory Function
The light will turn on in the last mode accessed, except firefly, turbo and strobe.
Rechargeable Function
Max 4A TYPE-C charging. During charging, the indicator is RED. After being fully charged, the indicator will be BLUE. When indicator flashes purple, it means abnormal charging(Pls screw down the light head and tail cap first before charging). Only firefly and low modes are available while charging.
  • Excellent throw with large hot spot.
  • Nice tint! 5700K?
  • Good runtime
  • Big and smooth reflector for throw
  • Intuitive operation
  • No noticeable PWM; PWM is an issue for a few with super sensitive eyes and pose efficiency issues?
  • Strap is helpful for extended usage/carry.


  • $299 retail is a bit high, but much more palatable in the low $200s


  • No tool included for replacing the switch cover.