Comparison Console
Olight Diffuse vs Sofirn SC31B
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Olight Diffuse stands out as the lightest option for weight, with about a 3% gap from the closest alternative. Olight Diffuse stands out as the cheapest option for retail price, with about a 15% gap from the closest alternative. Sofirn SC31B stands out as the highest output option for max lumens, with about a 43% gap from the closest alternative.
Decision Signals
What stands out
Olight Diffuse stands out as the cheapest option for retail price, with about a 15% gap from the closest alternative.
Sofirn SC31B stands out as the most expensive option for retail price, with about a 18% gap from the closest alternative.
Olight Diffuse stands out as the lightest option for weight, with about a 3% gap from the closest alternative.
Sofirn SC31B stands out as the heaviest option for weight, with about a 3% gap from the closest alternative.
Olight Diffuse stands out as the lowest output option for max lumens, with about a 30% gap from the closest alternative.
Sofirn SC31B stands out as the highest output option for max lumens, with about a 43% gap from the closest alternative.
Sofirn SC31B stands out as the shortest runtime option for max runtime, with about a 56% gap from the closest alternative.
Olight Diffuse stands out as the longest runtime option for max runtime, with about a 125% 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$32.99Cheapest
US$38.95Most expensive
Weight
57.5 g (2.03 oz)Lightest
59 g (2.08 oz)Heaviest
Length
87 mm (3.43 in)Shortest
117.5 mm (4.63 in)Longest
Output
Max lumens
700 lmLowest output
1000 lmHighest output
Max candela
1700 cdLowest candela
10750 cdHighest candela
Beam distance
80 m (262 ft)Lowest
207 m (679 ft)Highest
Max runtime
10800 minLongest runtime
4800 minShortest runtime
Power & durability
Battery type
14500 lithium-ion (also compatible with AA primary or NiMH)
18650 rechargeable lithium-ion
Charging type
USB-C charging via battery
Micro USB
Rechargeable
Yes
Yes
IP rating
IPX8
Unknown
Impact resistance
Unknown
Unknown
Material
Unknown
6061 Aluminum Alloy
Use case profile
Best for
EDC useTool kit or toolbox lightUsers needing anti-roll shapeUsers wanting waterproof light
Everyday carry (EDC)Home useOutdoor activities such as camping, hiking, caving, dog walking, fishing
Common praise
Good waterproof rating (IPX8)Anti-roll pentagon shapeGood output and runtimeConvenient battery with onboard USB-C chargingNice e-switch with indicator and lockout
Good value budget lightUSB charging includedStrong pocket clipSimple and easy user interfaceSolid build quality with anodised finish and gold plated springs
Common complaints
No knurling makes grip less secureTailcap is small and fiddly to unscrewNo built-in charging in flashlight (battery charges externally)Limited documentation on AA battery mode
No dedicated ultra-low moonlight modeMode memory can be inconvenient to access lowest modesClip is not reversible and protrudes beyond light lengthMicro USB instead of USB-C chargingNo lanyard included in some packages
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