Comparison Console
Fenix LR40R V2.0 vs ThruNite TN42 V2
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Fenix LR40R V2.0 stands out as the lightest option for weight, with about a 11% gap from the closest alternative. ThruNite TN42 V2 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 V2 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.
Fenix LR40R V2.0 stands out as the lightest option for weight, with about a 11% gap from the closest alternative.
ThruNite TN42 V2 stands out as the heaviest option for weight, with about a 13% gap from the closest alternative.
ThruNite TN42 V2 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 V2 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)Lightest
959 g (33.83 oz)Heaviest
Length
175 mm (6.89 in)Shortest
191 mm (7.52 in)Longest
Output
Max lumens
15000 lmHighest output
4848 lmLowest output
Max candela
Unknown
1620000 cd
Beam distance
900 m (2953 ft)Lowest
1800 m (5906 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 lithium-ion
Charging type
USB Type-C fast charging (QC3.0 compatible)
USB Type-C
Rechargeable
Yes
Yes
IP rating
IP68
IPX8
Impact resistance
Unknown
Unknown
Material
Unknown
Aluminum, hard anodized
Use case profile
Best for
Search and rescueOutdoor contractorsHigh output lighting needsLong-range and wide-area illumination
Long distance searchMega throwOutdoor search and rescue
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
High maximum output around 4848 lumensExceptional beam throw (~1800m)Good battery life with 4x21700 batteries in parallelSimple and intuitive user interface with 5 main modes plus turbo and strobeGood build quality with solid machining and anodizingIncludes shoulder strap and spare parts
Common complaints
Heaviest and largest in its class for EDCHighest output modes are temperature limited with short runtime at max output
Relatively heavy and large size (959g, 191mm length)Threads can be difficult to startThermal regulation absent, causing step down after ~2 minutesSomewhat flimsy front attachment point for shoulder strapDriver regulation is average with Turbo affected by battery voltageNo electronic lockout, only mechanical
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