Comparison Console
Acebeam Terminator M2 vs Fenix TK21R
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Acebeam Terminator M2 stands out as the lightest option for weight, with about a 9% gap from the closest alternative. Fenix TK21R stands out as the cheapest option for retail price, with about a 7% gap from the closest alternative. Fenix TK21R stands out as the highest output option for max lumens, with about a 13% gap from the closest alternative.
Decision Signals
What stands out
Fenix TK21R stands out as the cheapest option for retail price, with about a 7% gap from the closest alternative.
Acebeam Terminator M2 stands out as the most expensive option for retail price, with about a 7% gap from the closest alternative.
Acebeam Terminator M2 stands out as the lightest option for weight, with about a 9% gap from the closest alternative.
Fenix TK21R stands out as the heaviest option for weight, with about a 10% gap from the closest alternative.
Acebeam Terminator M2 stands out as the lowest output option for max lumens, with about a 11% gap from the closest alternative.
Fenix TK21R stands out as the highest output option for max lumens, with about a 13% gap from the closest alternative.
Acebeam Terminator M2 stands out as the shortest runtime option for max runtime, with about a 48% gap from the closest alternative.
Fenix TK21R stands out as the longest runtime option for max runtime, with about a 91% 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$139.9Most expensive
US$130.43Cheapest
Weight
201.1 g (7.09 oz)Lightest
221.4 g (7.81 oz)Heaviest
Length
95.4 mm (3.76 in)Shortest
153.3 mm (6.04 in)Longest
Output
Max lumens
3200 lmLowest output
3600 lmHighest output
Max candela
62500 cd
Unknown
Beam distance
500 m (1640 ft)Highest
480 m (1575 ft)Lowest
Max runtime
2280 minShortest runtime
4350 minLongest runtime
Power & durability
Battery type
1x 18650 Li-ion battery with built-in USB-C charging
21700 lithium-ion
Charging type
Battery built-in USB-C port (battery included)
USB Type-C
Rechargeable
Yes
Yes
IP rating
IP68
IP68
Impact resistance
1.5 m (5 ft)
1.5 m (5 ft)
Material
High-quality aluminum alloy AL6061-T6 with HAIII hard-anodized anti-abrasive and corrosion-resistant finish
Aluminum alloy A6061-T6
Use case profile
Best for
EDC useOutdoor activitiesTactical useEmergency lightingMulti-distance lighting
Tactical usePatrollingSearch and rescueTraffic inspectionSelf-defense
Common praise
Versatile dual-beam design combining flood and spotlightReliable and solid build quality with good machining and finishConvenient USB-C rechargeable battery includedGood runtime and thermal managementIntuitive dual-switch interfaceRGB auxiliary lighting for signaling and night vision preservation
Very bright with strong beamSolid build qualityIP68 waterproof ratingLong runtimeFast USB-C chargingComfortable size for tactical useImproved tactile switch feel
Common complaints
Tailcap must be removed to charge the battery, which some users find inconvenientHeavier and larger than ultra-compact flashlightsPocket clip can be stiff and not deep carrySome users dislike extensive laser etching
Larger size compared to some EDC flashlightsNo detailed mode descriptions available