Comparison Console
Acebeam Terminator M2 vs Streamlight MegaStream USB
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Streamlight MegaStream USB stands out as the lightest option for weight, with about a 24% gap from the closest alternative. Acebeam Terminator M2 stands out as the cheapest option for retail price, with about a 5% gap from the closest alternative. Acebeam Terminator M2 stands out as the highest output option for max lumens, with about a 78% gap from the closest alternative.
Decision Signals
What stands out
Acebeam Terminator M2 stands out as the cheapest option for retail price, with about a 5% gap from the closest alternative.
Streamlight MegaStream USB stands out as the most expensive option for retail price, with about a 6% gap from the closest alternative.
Streamlight MegaStream USB stands out as the lightest option for weight, with about a 24% gap from the closest alternative.
Acebeam Terminator M2 stands out as the heaviest option for weight, with about a 31% gap from the closest alternative.
Streamlight MegaStream USB stands out as the lowest output option for max lumens, with about a 44% gap from the closest alternative.
Acebeam Terminator M2 stands out as the highest output option for max lumens, with about a 78% gap from the closest alternative.
Streamlight MegaStream USB stands out as the shortest runtime option for max runtime, with about a 66% gap from the closest alternative.
Acebeam Terminator M2 stands out as the longest runtime option for max runtime, with about a 192% 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$139.9Cheapest
US$148Most expensive
Weight
201.1 g (7.09 oz)Heaviest
153 g (5.40 oz)Lightest
Length
95.4 mm (3.76 in)Shortest
134 mm (5.28 in)Longest
Output
Max lumens
3200 lmHighest output
1800 lmLowest output
Max candela
62500 cdHighest candela
26000 cdLowest candela
Beam distance
500 m (1640 ft)Highest
322 m (1056 ft)Lowest
Max runtime
2280 minLongest runtime
780 minShortest runtime
Power & durability
Battery type
1x 18650 Li-ion battery with built-in USB-C charging
SL-B34 rechargeable lithium-ion battery pack
Charging type
Battery built-in USB-C port (battery included)
USB-C charging port accessible without removing the battery
Rechargeable
Yes
Yes
IP rating
IP68
IPX7 waterproof to 1m for 30 minutes
Impact resistance
1.5 m (5 ft)Lowest
2 m (7 ft)Highest
Material
High-quality aluminum alloy AL6061-T6 with HAIII hard-anodized anti-abrasive and corrosion-resistant finish
Machined anodized aluminum alloy body with unbreakable polycarbonate lens
Use case profile
Best for
EDC useOutdoor activitiesTactical useEmergency lightingMulti-distance lighting
Everyday carryOutdoor useHigh-lumen requirement
Common praise
Versatile dual-beam design combining flood and spotlightReliable and solid build quality with good machining and finishConvenient USB-C rechargeable battery includedGood runtime and thermal managementIntuitive dual-switch interfaceRGB auxiliary lighting for signaling and night vision preservation
Compact size with high outputSmooth and focused beamConvenient USB-C charging without battery removalDurable machined aluminum buildLong runtime on low settings
Common complaints
Tailcap must be removed to charge the battery, which some users find inconvenientHeavier and larger than ultra-compact flashlightsPocket clip can be stiff and not deep carrySome users dislike extensive laser etching
Charging port cover prone to opening accidentallyPocket clip not securely attachedHigh output can be too bright for close work
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