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Comparison Console

Nitecore SRT6i vs SureFire M640DFT Turbo Scout Light Pro

EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.

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Command Brief

Recommended read

SureFire M640DFT Turbo Scout Light Pro stands out as the lightest option for weight, with about a 7% gap from the closest alternative. Nitecore SRT6i stands out as the cheapest option for retail price, with about a 64% gap from the closest alternative. Nitecore SRT6i stands out as the highest output option for max lumens, with about a 200% gap from the closest alternative.

Decision Signals

What stands out

Cheapest

Nitecore SRT6i stands out as the cheapest option for retail price, with about a 64% gap from the closest alternative.

Most expensive

SureFire M640DFT Turbo Scout Light Pro stands out as the most expensive option for retail price, with about a 174% gap from the closest alternative.

Lightest

SureFire M640DFT Turbo Scout Light Pro stands out as the lightest option for weight, with about a 7% gap from the closest alternative.

Heaviest

Nitecore SRT6i stands out as the heaviest option for weight, with about a 7% gap from the closest alternative.

Lowest output

SureFire M640DFT Turbo Scout Light Pro stands out as the lowest output option for max lumens, with about a 67% gap from the closest alternative.

Highest output

Nitecore SRT6i stands out as the highest output option for max lumens, with about a 200% gap from the closest alternative.

Shortest runtime

SureFire M640DFT Turbo Scout Light Pro stands out as the shortest runtime option for max runtime, with about a 96% gap from the closest alternative.

Longest runtime

Nitecore SRT6i stands out as the longest runtime option for max runtime, with about a 2445% 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.

Nitecore SRT6i — Beam distance: 510 m (1673 ft)Nitecore SRT6i — Max candela: 65200 cdNitecore SRT6i — Weight: 167 g (5.89 oz)Nitecore SRT6i — Length: 163 mm (6.42 in)Nitecore SRT6i — Retail price: US$145.49Nitecore SRT6i — Max lumens: 2100 lmSureFire M640DFT Turbo Scout Light Pro — Beam distance: 632 m (2073 ft)SureFire M640DFT Turbo Scout Light Pro — Max candela: 100000 cdSureFire M640DFT Turbo Scout Light Pro — Weight: 156 g (5.50 oz)SureFire M640DFT Turbo Scout Light Pro — Length: 150 mm (5.91 in)SureFire M640DFT Turbo Scout Light Pro — Retail price: US$399SureFire M640DFT Turbo Scout Light Pro — Max lumens: 700 lmBeam distanceMax candelaWeightLengthRetail priceMax lumens
Specification
Nitecore SRT6i
SureFire M640DFT Turbo Scout Light Pro
Price & carry
Retail price
US$145.49Cheapest
US$399Most expensive
Weight
167 g (5.89 oz)Heaviest
156 g (5.50 oz)Lightest
Length
163 mm (6.42 in)Longest
150 mm (5.91 in)Shortest
Output
Max lumens
2100 lmHighest output
700 lmLowest output
Max candela
65200 cdLowest candela
100000 cdHighest candela
Beam distance
510 m (1673 ft)Lowest
632 m (2073 ft)Highest
Max runtime
4200 minLongest runtime
165 minShortest runtime
Power & durability
Battery type
1x21700i Li-ion (NL2150HPi 5000mAh), 2xCR123, 2xRCR123/16340
One SF18650 rechargeable or two CR123A lithium primary batteries
Charging type
USB Type-C
Unknown
Rechargeable
Yes
Yes
IP rating
IP68
IPX7
Impact resistance
2 m (7 ft)
Unknown
Material
Aero grade aluminum alloy with HA III military grade hard-anodized finish; strike bezel with high strength silicon nitride ceramics
Aerospace aluminum, Mil-Spec hard anodized
Use case profile
Best for
▣Tactical Use▣Long Range Searchlight▣Law Enforcement▣Hunting
▣Long Range Target Identification▣Weapon Mounting For Military/law Enforcement Use▣Positive Target Identification At Extreme Distance
Common praise
✓Intuitive No Nonsense User Interface With Rotary Selector Ring✓Impressive Long Throw And Beam Intensity✓Solid Build Quality With Durable Materials✓Integrated USB C Charging With Included Proprietary Battery✓Tactical Features Such As Strobe Ready Mode And Lockout
✓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 Lithium✓Rugged Aerospace Aluminum Construction With Ipx7 Waterproof Rating✓Compatible With Multiple Mounting Systems And Remote Switches
Common complaints
⚠Large Head Size Makes Pocket Carry Inconvenient⚠Requires Proprietary Battery Which Limits Standard Battery Use
⚠Premium Price Point⚠Lower Lumen Output Compared To Some Flood Lights⚠Rechargeable Battery Sold Only As Surefire Format⚠Designed Primarily For Long Throw Rather Than Wide Area Illumination⚠Heavier Than Compact Scout Light Variants
Similar Records

Similar products

Nitecore EDC27 UHiNitecore122 g (4.30 oz) · US$89.95Nitecore EDC35Nitecore171 g (6.03 oz) · US$89.95Nitecore EC4GTSNitecore171 g (6.03 oz) · US$90Nitecore HC60 V2Nitecore108.5 g (3.83 oz) · US$93Nitecore P12Nitecore142 g (5.01 oz) · US$95Nitecore HC65 V2Nitecore114.5 g (4.04 oz) · US$96.75
Comparison Paths

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