Comparison Console
Sofirn SP33S vs SureFire M640DFT Turbo Scout Light Pro
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Sofirn SP33S stands out as the lightest option for weight, with about a 4% gap from the closest alternative. Sofirn SP33S stands out as the highest output option for max lumens, with about a 614% gap from the closest alternative. SureFire M640DFT Turbo Scout Light Pro stands out as the longest runtime option for max runtime, with about a 65% gap from the closest alternative.
Decision Signals
What stands out
Sofirn SP33S stands out as the lightest option for weight, with about a 4% gap from the closest alternative.
SureFire M640DFT Turbo Scout Light Pro stands out as the heaviest option for weight, with about a 4% gap from the closest alternative.
SureFire M640DFT Turbo Scout Light Pro stands out as the lowest output option for max lumens, with about a 86% gap from the closest alternative.
Sofirn SP33S stands out as the highest output option for max lumens, with about a 614% gap from the closest alternative.
Sofirn SP33S stands out as the shortest runtime option for max runtime, with about a 39% gap from the closest alternative.
SureFire M640DFT Turbo Scout Light Pro stands out as the longest runtime option for max runtime, with about a 65% gap from the closest alternative.
Sofirn SP33S stands out as the shortest option for length, with about a 16% gap from the closest alternative.
SureFire M640DFT Turbo Scout Light Pro stands out as the longest option for length, with about a 19% 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
Unknown
US$399
Weight
150 g (5.29 oz)Lightest
156 g (5.50 oz)Heaviest
Length
126 mm (4.96 in)Shortest
150 mm (5.91 in)Longest
Output
Max lumens
5000 lmHighest output
700 lmLowest output
Max candela
Unknown
100000 cd
Beam distance
264 m (866 ft)Lowest
632 m (2073 ft)Highest
Max runtime
100 minShortest runtime
165 minLongest runtime
Power & durability
Battery type
26650 or 21700 rechargeable Li-ion
One SF18650 rechargeable or two CR123A lithium primary batteries
Charging type
USB-C internal charging
Unknown
Rechargeable
Yes
Yes
IP rating
IPX8
IPX7
Impact resistance
Unknown
Unknown
Material
Aluminum alloy, T6061-T6
Aerospace aluminum, Mil-Spec hard anodized
Use case profile
Best for
EDCCampingHikingOutdoor activities
Long range target identificationWeapon mounting for military/law enforcement usePositive target identification at extreme distance
Common praise
High maximum brightness at 5000 lumensStable output with boost driverConvenient USB-C charging with powerbank capabilityGood build quality with flat tailcap for stable tailstandingNo PWM (pulse-width modulation) in light output
Outstanding beam intensity for long range identification (100,000 candela)Long runtime for its class (2.5-2.75 hours)Dual fuel capability offers flexibility between rechargeable battery and primary lithiumRugged aerospace aluminum construction with IPX7 waterproof ratingCompatible with multiple mounting systems and remote switches
Common complaints
Can turn off under strong vibrations due to brass button contact designSome color tint shift in beamLimited thermal regulation leading to output ramping on turbo mode
Premium price pointLower lumen output compared to some flood lightsRechargeable battery sold only as SureFire formatDesigned primarily for long throw rather than wide area illuminationHeavier than compact Scout Light variants
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