Comparison Console
Acebeam L17 vs Fenix TK21R
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Acebeam L17 stands out as the lightest option for weight, with about a 10% gap from the closest alternative. Acebeam L17 stands out as the cheapest option for retail price, with about a 37% gap from the closest alternative. Fenix TK21R stands out as the highest output option for max lumens, with about a 157% gap from the closest alternative.
Decision Signals
What stands out
Acebeam L17 stands out as the cheapest option for retail price, with about a 37% gap from the closest alternative.
Fenix TK21R stands out as the most expensive option for retail price, with about a 59% gap from the closest alternative.
Acebeam L17 stands out as the lightest option for weight, with about a 10% gap from the closest alternative.
Fenix TK21R stands out as the heaviest option for weight, with about a 11% gap from the closest alternative.
Acebeam L17 stands out as the lowest output option for max lumens, with about a 61% gap from the closest alternative.
Fenix TK21R stands out as the highest output option for max lumens, with about a 157% gap from the closest alternative.
Acebeam L17 stands out as the shortest runtime option for max runtime, with about a 20% gap from the closest alternative.
Fenix TK21R stands out as the longest runtime option for max runtime, with about a 25% 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$81.79Cheapest
US$130.43Most expensive
Weight
199 g (7.02 oz)Lightest
221.4 g (7.81 oz)Heaviest
Length
140.5 mm (5.53 in)Shortest
153.3 mm (6.04 in)Longest
Output
Max lumens
1400 lmLowest output
3600 lmHighest output
Max candela
160801 cd
Unknown
Beam distance
802 m (2631 ft)Highest
480 m (1575 ft)Lowest
Max runtime
3480 minShortest runtime
4350 minLongest runtime
Power & durability
Battery type
1x 18650 Li-ion battery (included)
21700 lithium-ion
Charging type
USB Type-C
USB Type-C
Rechargeable
Yes
Yes
IP rating
IP68
IP68
Impact resistance
1.5 m (5 ft)
1.5 m (5 ft)
Material
A6061-T6 aerospace-grade aluminum alloy with HAIII hard-anodized finish
Aluminum alloy A6061-T6
Use case profile
Best for
Tactical useHuntingLong-range illumination
Tactical usePatrollingSearch and rescueTraffic inspectionSelf-defense
Common praise
Impressive beam throw (up to 802 meters in white version)Compact and ergonomic designSilent electronic tail switchRobust build quality and IP68 waterproofingAvailable in useful colored LED options for hunting
Very bright with strong beamSolid build qualityIP68 waterproof ratingLong runtimeFast USB-C chargingComfortable size for tactical useImproved tactile switch feel
Common complaints
Significant heat buildup on Turbo mode requiring cautionLarge brightness step between High and Turbo modesLack of knurling for enhanced grip
Larger size compared to some EDC flashlightsNo detailed mode descriptions available