Comparison Console
Sofirn SK31 Tactical vs ThruNite TT20 The Outsider
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
ThruNite TT20 The Outsider stands out as the lightest option for weight, with about a 19% gap from the closest alternative. Sofirn SK31 Tactical stands out as the cheapest option for retail price, with about a 12% gap from the closest alternative. Sofirn SK31 Tactical stands out as the highest output option for max lumens, with about a 169% gap from the closest alternative.
Decision Signals
What stands out
Sofirn SK31 Tactical stands out as the cheapest option for retail price, with about a 12% gap from the closest alternative.
ThruNite TT20 The Outsider stands out as the most expensive option for retail price, with about a 13% gap from the closest alternative.
ThruNite TT20 The Outsider stands out as the lightest option for weight, with about a 19% gap from the closest alternative.
Sofirn SK31 Tactical stands out as the heaviest option for weight, with about a 23% gap from the closest alternative.
ThruNite TT20 The Outsider stands out as the lowest output option for max lumens, with about a 63% gap from the closest alternative.
Sofirn SK31 Tactical stands out as the highest output option for max lumens, with about a 169% gap from the closest alternative.
Sofirn SK31 Tactical stands out as the shortest runtime option for max runtime, with about a 79% gap from the closest alternative.
ThruNite TT20 The Outsider stands out as the longest runtime option for max runtime, with about a 380% 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$52.99Cheapest
US$60Most expensive
Weight
223.3 g (7.88 oz)Heaviest
181 g (6.38 oz)Lightest
Length
156.1 mm (6.15 in)Longest
136 mm (5.35 in)Shortest
Output
Max lumens
6800 lmHighest output
2526 lmLowest output
Max candela
38900 cdHighest candela
26483 cdLowest candela
Beam distance
395 m (1296 ft)Highest
305 m (1001 ft)Lowest
Max runtime
30000 minShortest runtime
144000 minLongest runtime
Power & durability
Battery type
21700 Li-ion rechargeable
21700 lithium-ion customized proprietary battery
Charging type
USB-C 5V 3A
USB-C charging
Rechargeable
Yes
Yes
IP rating
IPX8
IPX8
Impact resistance
Unknown
1.5 m (5 ft)
Material
6061-T6 aluminum alloy body, stainless steel bezel with black PVD coating
Military-grade aluminum AL 6061-T6
Use case profile
Best for
Tactical UseOutdoor ActivitiesSearch And RescueLaw EnforcementEDCHome Defense
HuntingEmergenciesOutdoor ActivitiesNight PatrolSecurity PatrolRoadside EmergenciesTactical Use
Common praise
High Maximum Brightness Of 6800 LumensLong Beam Distance Of 395 MetersRobust Build With Aluminum Body And Stainless Steel BezelEffective USB C Charging With Protective Screwable CoverMultiple Intuitive Switches Including LockoutGood Battery Runtime Up To 500 Hours On LowExcellent Mode Selection Including Tactical, Outdoor, And StrobeMinimal Green Tint LED EmitterIncluded Holster And Accessories
High Maximum Output (up To 2526 Lumens)Long Beam Throw (305 Meters)Very Long Firefly Mode Runtime (up To 100 Days At 0.5 Lumens)Dual Switch Interface Enabling Tactical And Daily UseUSB C Direct Recharge With Battery Level IndicatorDurable Ipx8 Waterproof And 1.5 Meter Impact ResistanceIncluded Proprietary 5000mah 21700 Battery And Accessories (holster, Lanyard, Spare O Rings)Well Designed Clip And Pocket Carry OptionsSolid Build Quality With Smooth Reflector And Good Beam Pattern
Common complaints
Included Battery Has Lower Continuous Discharge Rating Than Optimal For Max LumensLockout Button Placement Considered Awkward By Some UsersLockout Switch Occasionally Causes Operation Issues Requiring ToggleDoes Not Tail Stand Due To Button Protrusion
Proprietary Battery Only Compatible With This LightSomewhat Heavy And Large For Pocket CarryClip Can Rotate And May Scar The BodySmall Fixed Step Brightness Ramp Instead Of Completely Smooth RampCharging Port Cover May Sometimes Open Unintentionally
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