Comparison Console
Sofirn SD11 Diving Light vs Sofirn ST2
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Sofirn ST2 stands out as the lightest option for weight, with about a 25% gap from the closest alternative. Sofirn SD11 Diving Light stands out as the cheapest option for retail price, with about a 5% gap from the closest alternative. Sofirn SD11 Diving Light stands out as the highest output option for max lumens, with about a 67% gap from the closest alternative.
Decision Signals
What stands out
Sofirn SD11 Diving Light stands out as the cheapest option for retail price, with about a 5% gap from the closest alternative.
Sofirn ST2 stands out as the most expensive option for retail price, with about a 5% gap from the closest alternative.
Sofirn ST2 stands out as the lightest option for weight, with about a 25% gap from the closest alternative.
Sofirn SD11 Diving Light stands out as the heaviest option for weight, with about a 34% gap from the closest alternative.
Sofirn ST2 stands out as the lowest output option for max lumens, with about a 40% gap from the closest alternative.
Sofirn SD11 Diving Light stands out as the highest output option for max lumens, with about a 67% gap from the closest alternative.
Sofirn SD11 Diving Light stands out as the shortest runtime option for max runtime, with about a 97% gap from the closest alternative.
Sofirn ST2 stands out as the longest runtime option for max runtime, with about a 3809% 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$59.99Cheapest
US$62.99Most expensive
Weight
331 g (11.68 oz)Heaviest
247.6 g (8.73 oz)Lightest
Length
155.3 mm (6.11 in)Longest
112 mm (4.41 in)Shortest
Output
Max lumens
5000 lmHighest output
3000 lmLowest output
Max candela
14800 cd
Unknown
Beam distance
244 m (801 ft)
Unknown
Max runtime
660 minShortest runtime
25800 minLongest runtime
Power & durability
Battery type
1 x 26800 rechargeable lithium ion battery (7500mAh)
2x 18650 rechargeable lithium-ion cells (included)
Charging type
USB Type-C
USB Type-C
Rechargeable
Yes
Yes
IP rating
IPX8 (100 meters waterproof)
IPX6
Impact resistance
1.5 m (5 ft)
Unknown
Material
AL6061-T6 aluminum alloy
Aluminum alloy
Use case profile
Best for
Scuba divingUnderwater photographyFishingCave explorationWater work
WorkOutdoor activitiesGaragesJob sitesEveryday carry
Common praise
Very bright 5000 lumens with long 244 meter beam distanceOutstanding color rendering with CRI 90 warm light and neutral white optionDurable aluminum construction with IPX8 100m waterproof ratingConvenient USB-C recharge and included high-capacity batterySimple yet effective dual-switch interface with battery level indication
High maximum brightness of 3000 lumens with smooth dimmingVersatile multi-light colors: white, red, and UVRobust 90º rotating head with good resistance and soft clicksStrong magnetic tail and large clip for easy hands-free useLong runtime up to ~430 hours on lowUSB-C charging with included cableSolid aluminum alloy construction with IPX6 water resistance
Common complaints
Relatively heavy at 331 grams with batteryLarge size compared to typical EDC flashlightsNo detailed official specs for the included proprietary battery
Output steps down quickly from turbo to about 500 lumens after 1 minuteRelatively heavy and bulky for EDC (about 248 grams, 4.4 x 1.8 x 0.9 inches)Some users may find the UI or rotary switch unusual at first
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