Comparison Console
Sofirn SP36 BLF vs ThruNite TT20
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
ThruNite TT20 stands out as the lightest option for weight, with about a 58% gap from the closest alternative. Sofirn SP36 BLF stands out as the cheapest option for retail price, with about a 10% gap from the closest alternative. Sofirn SP36 BLF stands out as the highest output option for max lumens, with about a 124% gap from the closest alternative.
Decision Signals
What stands out
Sofirn SP36 BLF stands out as the cheapest option for retail price, with about a 10% gap from the closest alternative.
ThruNite TT20 stands out as the most expensive option for retail price, with about a 11% gap from the closest alternative.
ThruNite TT20 stands out as the lightest option for weight, with about a 58% gap from the closest alternative.
Sofirn SP36 BLF stands out as the heaviest option for weight, with about a 139% gap from the closest alternative.
ThruNite TT20 stands out as the lowest output option for max lumens, with about a 55% gap from the closest alternative.
Sofirn SP36 BLF stands out as the highest output option for max lumens, with about a 124% gap from the closest alternative.
Sofirn SP36 BLF stands out as the shortest runtime option for max runtime, with about a 55% gap from the closest alternative.
ThruNite TT20 stands out as the longest runtime option for max runtime, with about a 122% 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$53.99Cheapest
US$59.95Most expensive
Weight
433.3 g (15.28 oz)Heaviest
181.1 g (6.39 oz)Lightest
Length
126.8 mm (4.99 in)Shortest
136 mm (5.35 in)Longest
Output
Max lumens
5650 lmHighest output
2526 lmLowest output
Max candela
31577 cdHighest candela
26600 cdLowest candela
Beam distance
355.4 m (1166 ft)Highest
305 m (1001 ft)Lowest
Max runtime
64800 minShortest runtime
144000 minLongest runtime
Power & durability
Battery type
3x 18650 button top
21700 proprietary lithium-ion
Charging type
USB Type-C
USB Type-C
Rechargeable
Yes
Yes
IP rating
IPX-8 (submersible to 2 meters)
IPX8
Impact resistance
Unknown
1.5 m (5 ft)
Material
Aluminum
Aluminum 6061-T6
Use case profile
Best for
EDCEmergency lightingLong runtimeHigh outputOutdoor useCampingSearchingMilitary use
Tactical useHuntingSearch and rescueSecurity patrolRoadside emergenciesOutdoor adventuresEmergency preparedness
Common praise
Very high output (up to 5650 lumens)Excellent runtime especially on low modesAdvanced and customizable Anduril 2 UIUSB-C charging with powerbank capabilitySolid build quality with good grip and durable materialsNeutral white LED with high CRI (90)Multiple modes including unlock and lockoutWell suited for large hands and outdoor use
High brightness and long throwGood build quality and ruggednessVersatile and intuitive interfaceLong battery life especially in firefly modeProprietary battery includedUSB-C chargingVersatile carrying options including reversible clip and holster
Common complaints
Quite large and heavy for pocket carryRound body prone to rolling on uneven surfacesHeats up quickly on high/turbo modesNot ideal for users with small handsButton top batteries required (flat tops unstable)
Proprietary battery limits battery replacement optionsSome users find the size and weight bulky for pocket carry
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