Comparison Console
Sofirn SD11 Diving Light vs Wurkkos DL40
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Sofirn SD11 Diving Light stands out as the lightest option for weight, with about a 40% gap from the closest alternative. Sofirn SD11 Diving Light stands out as the cheapest option for retail price, with about a 17% gap from the closest alternative. Wurkkos DL40 stands out as the longest runtime option for max runtime, with about a 155% 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 17% gap from the closest alternative.
Wurkkos DL40 stands out as the most expensive option for retail price, with about a 20% gap from the closest alternative.
Sofirn SD11 Diving Light stands out as the lightest option for weight, with about a 40% gap from the closest alternative.
Wurkkos DL40 stands out as the heaviest option for weight, with about a 68% gap from the closest alternative.
Sofirn SD11 Diving Light stands out as the shortest runtime option for max runtime, with about a 61% gap from the closest alternative.
Wurkkos DL40 stands out as the longest runtime option for max runtime, with about a 155% gap from the closest alternative.
Sofirn SD11 Diving Light stands out as the shortest option for length, with about a 23% gap from the closest alternative.
Wurkkos DL40 stands out as the longest option for length, with about a 29% 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$72Most expensive
Weight
331 g (11.68 oz)Lightest
556 g (19.61 oz)Heaviest
Length
155.3 mm (6.11 in)Shortest
201.1 mm (7.92 in)Longest
Output
Max lumens
5000 lm
5000 lm
Max candela
14800 cd
Unknown
Beam distance
244 m (801 ft)Lowest
400 m (1312 ft)Highest
Max runtime
660 minShortest runtime
1680 minLongest runtime
Power & durability
Battery type
1 x 26800 rechargeable lithium ion battery (7500mAh)
2x 26650 (compatible with 18650) Li-Ion rechargeable batteries
Charging type
USB Type-C
Included dual-slot USB charger with Micro USB cable
Rechargeable
Yes
Yes
IP rating
IPX8 (100 meters waterproof)
IPX8 (up to 100m depth)
Impact resistance
1.5 m (5 ft)
Unknown
Material
AL6061-T6 aluminum alloy
Aerospace grade 6061 aluminum alloy, hard-anodized type III finish, toughened mineral glass lens
Use case profile
Best for
Scuba divingUnderwater photographyFishingCave explorationWater work
DivingUnderwater useCave divingScuba divingEDC in wet environments
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
Very bright at 5000 lumens with good color rendering (CRI 90)Solid build quality with aerospace aluminum and toughened glassGood thermal regulation and long runtime with large capacity batteriesWaterproof up to 100 meters (IPX8)Memorizes last brightness mode used
Common complaints
Relatively heavy at 331 grams with batteryLarge size compared to typical EDC flashlightsNo detailed official specs for the included proprietary battery
Wobbly/mushy side switch with long travel, less tactile feedbackNo lockout safety except tailcap partial unscrewSwitch mode spacing could be improved, low mode is relatively bright for night visionGreenish tint in LEDs compared to other neutral white flashlightsNo knurling on body, may affect grip
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