Comparison Console
Sofirn SC13B vs Wurkkos WK03
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Sofirn SC13B stands out as the lightest option for weight, with about a 27% gap from the closest alternative. Wurkkos WK03 stands out as the cheapest option for retail price, with about a 55% gap from the closest alternative. Wurkkos WK03 stands out as the highest output option for max lumens, with about a 38% gap from the closest alternative.
Decision Signals
What stands out
Wurkkos WK03 stands out as the cheapest option for retail price, with about a 55% gap from the closest alternative.
Sofirn SC13B stands out as the most expensive option for retail price, with about a 120% gap from the closest alternative.
Sofirn SC13B stands out as the lightest option for weight, with about a 27% gap from the closest alternative.
Wurkkos WK03 stands out as the heaviest option for weight, with about a 38% gap from the closest alternative.
Sofirn SC13B stands out as the lowest output option for max lumens, with about a 28% gap from the closest alternative.
Wurkkos WK03 stands out as the highest output option for max lumens, with about a 38% gap from the closest alternative.
Wurkkos WK03 stands out as the shortest runtime option for max runtime, with about a 99% gap from the closest alternative.
Sofirn SC13B stands out as the longest runtime option for max runtime, with about a 7291% 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$32.99Most expensive
US$14.99Cheapest
Weight
40 g (1.41 oz)Lightest
55 g (1.94 oz)Heaviest
Length
64.6 mm (2.54 in)Shortest
101.5 mm (4.00 in)Longest
Output
Max lumens
1300 lmLowest output
1800 lmHighest output
Max candela
9520.5 cdHighest candela
9450 cdLowest candela
Beam distance
217 m (712 ft)Highest
194 m (636 ft)Lowest
Max runtime
10200 minLongest runtime
138 minShortest runtime
Power & durability
Battery type
1×18350 1100mAh
18650 lithium-ion
Charging type
USB Type-C
USB Type-C
Rechargeable
Yes
Yes
IP rating
IP68
IPX8
Impact resistance
1 m (3 ft)
Unknown
Material
AL6061-T6 aluminum alloy
Aluminum alloy
Use case profile
Best for
Everyday carryCompact keychain flashlightEmergency useOutdoor activitiesCamping and hikingPortable hands-free lighting
EDC useAffordable 18650 flashlightUsers needing USB-C chargingThose desiring a compact, lightweight 18650 flashlight
Common praise
Compact and lightweight designHigh brightness relative to sizeBuilt-in USB-C charging works well and charges in about 1.5 hoursIncluded 18350 battery and accessories provide good valueLockout mode prevents accidental activationMagnetic tail cap for hands-free attachmentGood user interface with mode memory and indicator switch
Excellent value for money, offering high output and USB-C charging for under $17Lightweight and compact with good build qualitySimple and intuitive user interface with battery level indicationGood beam profile from TIR opticMultiple modes including direct access to moonlight and turbo
Common complaints
Low CRI and cold white tint around 6000-6500KOutput does not fully reach claimed 1300 lumens, more like 1000 lumens sustainedBeam has ring artifacts due to fresnel lensShort turbo runtime with quick stepdownSide switch with button terminal instead of spring on battery endNot ideal for long runtime heavy use beyond a few hours
PWM used on all brightness modesBrightness drops after about one minute at turbo due to direct-drive FET driverMoonlight and turbo modes accessible only via shortcutsLanyard hole prevents clean tailstanding when attachedSharp cooling fins on headLower CRI in original SST-40 version (improved in Nichia 519A "Gold" edition)
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