Comparison Console
Fenix LR40R V2.0 vs ThruNite TN42
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
ThruNite TN42 stands out as the lightest option for weight, with about a 24% gap from the closest alternative. ThruNite TN42 stands out as the cheapest option for retail price, with about a 13% gap from the closest alternative. Fenix LR40R V2.0 stands out as the highest output option for max lumens, with about a 209% gap from the closest alternative.
Decision Signals
What stands out
ThruNite TN42 stands out as the cheapest option for retail price, with about a 13% gap from the closest alternative.
Fenix LR40R V2.0 stands out as the most expensive option for retail price, with about a 15% gap from the closest alternative.
ThruNite TN42 stands out as the lightest option for weight, with about a 24% gap from the closest alternative.
Fenix LR40R V2.0 stands out as the heaviest option for weight, with about a 31% gap from the closest alternative.
ThruNite TN42 stands out as the lowest output option for max lumens, with about a 68% gap from the closest alternative.
Fenix LR40R V2.0 stands out as the highest output option for max lumens, with about a 209% gap from the closest alternative.
Fenix LR40R V2.0 stands out as the shortest runtime option for max runtime, with about a 90% gap from the closest alternative.
ThruNite TN42 stands out as the longest runtime option for max runtime, with about a 858% gap from the closest alternative.
Specification Profile
Relative dimensions at a glance
Each axis is normalized against the largest raw value among the products in this comparison. Farther outward means a larger value, not necessarily a better result. Axes with an unverified value are omitted.
Price & carry
Retail price
US$315.92Most expensive
US$275Cheapest
Weight
850 g (29.98 oz)Heaviest
648 g (22.86 oz)Lightest
Length
175 mm (6.89 in)Shortest
190.5 mm (7.50 in)Longest
Output
Max lumens
15000 lmHighest output
4848 lmLowest output
Max candela
Unknown
864000 cd
Beam distance
900 m (2953 ft)Lowest
1860 m (6102 ft)Highest
Max runtime
33 minShortest runtime
316 minLongest runtime
Power & durability
Battery type
Built-in rechargeable Li-ion battery pack 12000 mAh (or 1 to 4 x 18650 cells)
4x 21700 rechargeable lithium-ion batteries (parallel configuration)
Charging type
USB Type-C fast charging (QC3.0 compatible)
USB Type-C
Rechargeable
Yes
Yes
IP rating
IP68
IPX8 (2 meters)
Impact resistance
Unknown
1.5 m (5 ft)
Material
Unknown
Aluminum, hard anodized
Use case profile
Best for
Search and rescueOutdoor contractorsHigh output lighting needsLong-range and wide-area illumination
Search and rescueLong distance throwOutdoor activities requiring high output and long range
Common praise
Excellent brightness and balanced beam for both throw and floodDurable and waterproof design (IP68)Fast USB-C charging and battery level indicatorGood runtime especially on lower modesErgonomic and solid build quality
Very high max output of 4848 lumens with excellent long throw capability (1860 meters).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.
Common complaints
Heaviest and largest in its class for EDCHighest output modes are temperature limited with short runtime at max output
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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