Comparison Console
Acebeam PT40 vs Streamlight MegaStream USB
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Acebeam PT40 stands out as the lightest option for weight, with about a 5% gap from the closest alternative. Streamlight MegaStream USB stands out as the cheapest option for retail price, with about a 15% gap from the closest alternative. Acebeam PT40 stands out as the highest output option for max lumens, with about a 67% gap from the closest alternative.
Decision Signals
What stands out
Streamlight MegaStream USB stands out as the cheapest option for retail price, with about a 15% gap from the closest alternative.
Acebeam PT40 stands out as the most expensive option for retail price, with about a 18% gap from the closest alternative.
Acebeam PT40 stands out as the lightest option for weight, with about a 5% gap from the closest alternative.
Streamlight MegaStream USB stands out as the heaviest option for weight, with about a 6% gap from the closest alternative.
Streamlight MegaStream USB stands out as the lowest output option for max lumens, with about a 40% gap from the closest alternative.
Acebeam PT40 stands out as the highest output option for max lumens, with about a 67% gap from the closest alternative.
Streamlight MegaStream USB stands out as the shortest runtime option for max runtime, with about a 84% gap from the closest alternative.
Acebeam PT40 stands out as the longest runtime option for max runtime, with about a 515% 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$175Most expensive
US$148Cheapest
Weight
145 g (5.11 oz)Lightest
153 g (5.40 oz)Heaviest
Length
126.8 mm (4.99 in)Shortest
134 mm (5.28 in)Longest
Output
Max lumens
3000 lmHighest output
1800 lmLowest output
Max candela
3680 cdLowest candela
26000 cdHighest candela
Beam distance
121 m (397 ft)Lowest
322 m (1056 ft)Highest
Max runtime
4800 minLongest runtime
780 minShortest runtime
Power & durability
Battery type
18650 rechargeable Li-ion
SL-B34 rechargeable lithium-ion battery pack
Charging type
Micro USB (via included cable, optional battery with USB-C port)
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 m (3 ft)Lowest
2 m (7 ft)Highest
Material
A6061-T6 aluminium alloy with Type III hard-anodized finish
Machined anodized aluminum alloy body with unbreakable polycarbonate lens
Use case profile
Best for
Industrial workVehicle repairCampingOutdoor sportsLaw enforcementEveryday carry
Everyday carryOutdoor useHigh-lumen requirement
Common praise
High brightness and good beam qualityVersatile mounting options including magnetic tail and pocket clipHigh color rendering index reducing eye strainSolid build quality with aircraft-grade aluminum body
Compact size with high outputSmooth and focused beamConvenient USB-C charging without battery removalDurable machined aluminum buildLong runtime on low settings
Common complaints
Magnet not very strong on curved metal surfacesHeadband attachment not very comfortable for switching between handheld and headlamp usePocket clip is not very stiff and less comfortable to clip onto pockets
Charging port cover prone to opening accidentallyPocket clip not securely attachedHigh output can be too bright for close work