Comparison Console
Sofirn SK31 vs Sofirn ST2 Max
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Sofirn SK31 stands out as the lightest option for weight, with about a 8% gap from the closest alternative. Sofirn SK31 stands out as the cheapest option for retail price, with about a 16% gap from the closest alternative. Sofirn SK31 stands out as the highest output option for max lumens, with about a 127% gap from the closest alternative.
Decision Signals
What stands out
Sofirn SK31 stands out as the cheapest option for retail price, with about a 16% gap from the closest alternative.
Sofirn ST2 Max stands out as the most expensive option for retail price, with about a 19% gap from the closest alternative.
Sofirn SK31 stands out as the lightest option for weight, with about a 8% gap from the closest alternative.
Sofirn ST2 Max stands out as the heaviest option for weight, with about a 9% gap from the closest alternative.
Sofirn ST2 Max stands out as the lowest output option for max lumens, with about a 56% gap from the closest alternative.
Sofirn SK31 stands out as the highest output option for max lumens, with about a 127% gap from the closest alternative.
Sofirn ST2 Max stands out as the shortest runtime option for max runtime, with about a 14% gap from the closest alternative.
Sofirn SK31 stands out as the longest runtime option for max runtime, with about a 16% 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$62.99Most expensive
Weight
223.3 g (7.88 oz)Lightest
244 g (8.61 oz)Heaviest
Length
156.1 mm (6.15 in)Longest
113 mm (4.45 in)Shortest
Output
Max lumens
6800 lmHighest output
3000 lmLowest output
Max candela
Unknown
Unknown
Beam distance
395 m (1296 ft)
Unknown
Max runtime
30000 minLongest runtime
25800 minShortest runtime
Power & durability
Battery type
21700 Li-ion rechargeable
2x 18650 rechargeable lithium-ion cells
Charging type
USB-C 5V 3A, approx. 3 hours charging time
USB-C charging
Rechargeable
Yes
Yes
IP rating
IPX8
IPX6
Impact resistance
Unknown
Unknown
Material
Aluminum alloy body, stainless steel bezel with tungsten spheres
Aluminum alloy
Use case profile
Best for
Tactical useOutdoor useSearch and rescueLaw enforcementEDCHome defensePatrol duty
Work lightOutdoor activitiesGaragesJob sitesEDCHands-free use via rotating head and magnetic base
Common praise
High max output of 6800 lumensLong beam distance (395 meters)Robust aluminum body with stainless steel bezel and tungsten spheres for glass breakingEfficient LHP73B LED emitter with clean tintTriple-switch interface allowing intuitive controlExcellent water resistance with screwable aluminum USB-C coverLong runtime up to 500 hours on low modeIncluded rechargeable 21700 batteryBattery indicator for charge level
Versatile multi-light functionality (white, red, UV)Long runtime up to 430 hours on low modeSolid build quality and robust rotating headUSB-C charging convenienceGood magnetic tail for hands-free use
Common complaints
Lockout switch placement can be awkwardLockout switch sometimes malfunctions causing failure to turn on (resolvable by toggling lockout)Included battery has lower continuous discharge rating (CDR) than recommended for max turbo output
Relatively heavy and large for pocket carrySomewhat tight USB-C port coverNo pocket clip includedBeam distance and candela not clearly specified
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