Comparison Console
Fenix LR36R vs Fenix TK21R
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Fenix TK21R stands out as the lightest option for weight, with about a 55% gap from the closest alternative. Fenix TK21R stands out as the cheapest option for retail price, with about a 64% gap from the closest alternative. Fenix LR36R stands out as the highest output option for max lumens, with about a 178% gap from the closest alternative.
Decision Signals
What stands out
Fenix TK21R stands out as the cheapest option for retail price, with about a 64% gap from the closest alternative.
Fenix LR36R stands out as the most expensive option for retail price, with about a 176% gap from the closest alternative.
Fenix TK21R stands out as the lightest option for weight, with about a 55% gap from the closest alternative.
Fenix LR36R stands out as the heaviest option for weight, with about a 123% gap from the closest alternative.
Fenix TK21R stands out as the lowest output option for max lumens, with about a 64% gap from the closest alternative.
Fenix LR36R stands out as the highest output option for max lumens, with about a 178% gap from the closest alternative.
Fenix TK21R stands out as the shortest runtime option for max runtime, with about a 29% gap from the closest alternative.
Fenix LR36R stands out as the longest runtime option for max runtime, with about a 41% 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$130.43Cheapest
Weight
493 g (17.39 oz)Heaviest
221.4 g (7.81 oz)Lightest
Length
161 mm (6.34 in)Longest
153.3 mm (6.04 in)Shortest
Output
Max lumens
10000 lmHighest output
3600 lmLowest output
Max candela
396600 cd
Unknown
Beam distance
1260 m (4134 ft)Highest
480 m (1575 ft)Lowest
Max runtime
6120 minLongest runtime
4350 minShortest runtime
Power & durability
Battery type
2x 21700 Li-ion (Fenix ARB-L21-5000 V2.0)
21700 lithium-ion
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)
IP68
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 alloy A6061-T6
Use case profile
Best for
Search and rescueOutdoor activitiesProfessional use with long-range illumination needsCampingSurveillance and object protection
Tactical usePatrollingSearch and rescueTraffic inspectionSelf-defense
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 bright with strong beamSolid build qualityIP68 waterproof ratingLong runtimeFast USB-C chargingComfortable size for tactical useImproved tactile switch feel
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
Larger size compared to some EDC flashlightsNo detailed mode descriptions available
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