Comparison Console
Fenix LR36R vs ThruNite TN42
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Fenix LR36R 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 24% gap from the closest alternative. Fenix LR36R stands out as the highest output option for max lumens, with about a 106% gap from the closest alternative.
Decision Signals
What stands out
ThruNite TN42 stands out as the cheapest option for retail price, with about a 24% gap from the closest alternative.
Fenix LR36R stands out as the most expensive option for retail price, with about a 31% gap from the closest alternative.
Fenix LR36R stands out as the lightest option for weight, with about a 24% gap from the closest alternative.
ThruNite TN42 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 52% gap from the closest alternative.
Fenix LR36R stands out as the highest output option for max lumens, with about a 106% gap from the closest alternative.
ThruNite TN42 stands out as the shortest runtime option for max runtime, with about a 95% gap from the closest alternative.
Fenix LR36R stands out as the longest runtime option for max runtime, with about a 1837% 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$360Most expensive
US$275Cheapest
Weight
493 g (17.39 oz)Lightest
648 g (22.86 oz)Heaviest
Length
161 mm (6.34 in)Shortest
190.5 mm (7.50 in)Longest
Output
Max lumens
10000 lmHighest output
4848 lmLowest output
Max candela
396600 cdLowest candela
864000 cdHighest candela
Beam distance
1260 m (4134 ft)Lowest
1860 m (6102 ft)Highest
Max runtime
6120 minLongest runtime
316 minShortest runtime
Power & durability
Battery type
2x 21700 Li-ion (Fenix ARB-L21-5000 V2.0)
4x 21700 rechargeable lithium-ion batteries (parallel configuration)
Charging type
USB-C charging port, supports onboard charging and can function as power bank
USB Type-C
Rechargeable
Yes
Yes
IP rating
IP68 (up to 2 meters for 30 minutes)
IPX8 (2 meters)
Impact resistance
1.5 m (5 ft)
1.5 m (5 ft)
Material
Aerospace hardened aluminum with Type III hard anodized finish, hardened ultra clear glass lens with anti-reflective coating, stainless steel bezel
Aluminum, hard anodized
Use case profile
Best for
Search and rescueOutdoor activitiesProfessional use with long-range illumination needsCampingSurveillance and object protection
Search and rescueLong distance throwOutdoor activities requiring high output and long range
Common praise
Extremely high output for both throw and flood illuminationHybrid LEP + LED system provides versatile lightingOLED display gives real-time battery and brightness infoDurable aerospace-grade aluminum construction with excellent waterproofingIncluded accessories such as holster, lanyard, and USB-C charging cableSmooth and stepless brightness adjustment via rotary switch
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
Relatively heavy and bulky, limiting everyday carry convenienceLaser classification 3B requires careful handling and specialized purchase requirementsUser interface can be confusing with mode switching and locking mechanismsBattery runtime estimates on OLED can be inconsistent
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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