Very high max output of 4848 lumens with excellent long throw capability (1860 meters).
Flashlight Record
ThruNite
ThruNite TN42
The ThruNite TN42 V2 is an aluminum, USB-C rechargeable handheld flashlight with a Luminus SBT90.2 LED, delivering up to 4848 lumens and a beam distance of 1860 meters. It uses 4x 21700 rechargeable batteries in parallel, offers 5 main modes plus strobe and firefly, and features IPX8 water resistance and solid build quality.
Last updated
Weight648 g (22.86 oz)
PriceUS$275
Max lumens4848 lm
Battery4x 21700 Rechargeable Lithium-ion Batteries (parallel Configuration)
Technical Specs
Specifications
CategoryHandheld Flashlight
Length190.5 mm (7.50 in)
Head diameter105.2 mm (4.14 in)
Body diameter59.2 mm (2.33 in)
Max lumens4848 lm
Max candela864000 cd
Beam distance1860 m (6102 ft)
Max runtime316 min
Battery type4x 21700 Rechargeable Lithium-ion Batteries (parallel Configuration)
RechargeableYes
Charging typeUSB Type-C
IP ratingIPX8 (2 METERS)
Impact resistance1.5 m (5 ft)
MaterialAluminum, Hard Anodized
Switch typeElectronic Side Switch (e-switch)
Output Profile
Modes
FireflyLowMediumHighTurboStrobe
Carry Profile
Best for
Search And RescueLong Distance ThrowOutdoor Activities Requiring High Output And Long Range
Field Signals
Common praise
Good build quality with hard anodized aluminum and tight threading.
Simple and intuitive e-switch user interface with mode memory.
Included accessories like shoulder strap and USB-C charger.
No visible or audible PWM.
Battery runtime up to approximately 5 hours and 16 minutes at firefly mode for 180 days.
Good thermal performance with predictable step-down after 2 minutes on turbo.
Watchlist
Common complaints
No thermal regulation, causing step down due to heat after turbo mode.
Threads are somewhat difficult to start or unscrew.
Heats up significantly on turbo/high modes making prolonged handheld use uncomfortable.
Limited retention options, some users find shoulder strap front mount flimsy.
Low voltage protection is not fully clear; caution advised with unprotected cells.
Large size and weight (over 600 grams without batteries) makes compact carry difficult.
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