Comparison Console
Acebeam W20 vs Streamlight MegaStream USB
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Acebeam W20 stands out as the lightest option for weight, with about a 15% gap from the closest alternative. Streamlight MegaStream USB stands out as the cheapest option for retail price, with about a 22% gap from the closest alternative. Streamlight MegaStream USB stands out as the highest output option for max lumens, with about a 200% 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 22% gap from the closest alternative.
Acebeam W20 stands out as the most expensive option for retail price, with about a 28% gap from the closest alternative.
Acebeam W20 stands out as the lightest option for weight, with about a 15% gap from the closest alternative.
Streamlight MegaStream USB stands out as the heaviest option for weight, with about a 17% gap from the closest alternative.
Acebeam W20 stands out as the lowest output option for max lumens, with about a 67% gap from the closest alternative.
Streamlight MegaStream USB stands out as the highest output option for max lumens, with about a 200% gap from the closest alternative.
Acebeam W20 stands out as the shortest runtime option for max runtime, with about a 90% gap from the closest alternative.
Streamlight MegaStream USB stands out as the longest runtime option for max runtime, with about a 875% 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$189.9Most expensive
US$148Cheapest
Weight
130.6 g (4.61 oz)Lightest
153 g (5.40 oz)Heaviest
Length
115.1 mm (4.53 in)Shortest
134 mm (5.28 in)Longest
Output
Max lumens
600 lmLowest output
1800 lmHighest output
Max candela
302500 cdHighest candela
26000 cdLowest candela
Beam distance
1100 m (3609 ft)Highest
322 m (1056 ft)Lowest
Max runtime
80 minShortest runtime
780 minLongest runtime
Power & durability
Battery type
16340 rechargeable Li-ion (compatible with CR123 primary battery)
SL-B34 rechargeable lithium-ion battery pack
Charging type
USB-C (on battery)
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
Aerospace-grade AL6061-T6 aluminum with hard-anodized finish
Machined anodized aluminum alloy body with unbreakable polycarbonate lens
Use case profile
Best for
Tactical useLong-range spottingClose-range illuminationOutdoor adventuresSearch and rescueEveryday carry
Everyday carryOutdoor useHigh-lumen requirement
Common praise
Compact size with excellent long-range performance.Wide-angle spill solves close-range illumination issues common in LEP lights.Durable build with IP68 rating and good drop resistance.Intuitive dual-switch interface for fast operation.Rechargeable battery with USB-C charging on the cell.
Compact size with high outputSmooth and focused beamConvenient USB-C charging without battery removalDurable machined aluminum buildLong runtime on low settings
Common complaints
Limited runtime at maximum output (20 seconds before step-down).Battery charging requires removing the cell due to USB-C port on battery itself.Some complexity in controlling modes due to dual-switch design.
Charging port cover prone to opening accidentallyPocket clip not securely attachedHigh output can be too bright for close work