Comparison Console
Streamlight MegaStream USB vs Streamlight PolyTac 90 X USB
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Streamlight PolyTac 90 X USB stands out as the lightest option for weight, with about a 11% gap from the closest alternative. Streamlight PolyTac 90 X USB stands out as the cheapest option for retail price, with about a 14% gap from the closest alternative. Streamlight MegaStream USB stands out as the highest output option for max lumens, with about a 260% gap from the closest alternative.
Decision Signals
What stands out
Streamlight PolyTac 90 X USB stands out as the cheapest option for retail price, with about a 14% gap from the closest alternative.
Streamlight MegaStream USB stands out as the most expensive option for retail price, with about a 17% gap from the closest alternative.
Streamlight PolyTac 90 X USB stands out as the lightest option for weight, with about a 11% gap from the closest alternative.
Streamlight MegaStream USB stands out as the heaviest option for weight, with about a 13% gap from the closest alternative.
Streamlight PolyTac 90 X USB stands out as the lowest output option for max lumens, with about a 72% gap from the closest alternative.
Streamlight MegaStream USB stands out as the highest output option for max lumens, with about a 260% gap from the closest alternative.
Streamlight PolyTac 90 X USB stands out as the shortest runtime option for max runtime, with about a 71% gap from the closest alternative.
Streamlight MegaStream USB stands out as the longest runtime option for max runtime, with about a 247% 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$148Most expensive
US$127Cheapest
Weight
153 g (5.40 oz)Heaviest
136 g (4.80 oz)Lightest
Length
134 mm (5.28 in)Longest
112.5 mm (4.43 in)Shortest
Output
Max lumens
1800 lmHighest output
500 lmLowest output
Max candela
26000 cdHighest candela
7000 cdLowest candela
Beam distance
322 m (1056 ft)Highest
167 m (548 ft)Lowest
Max runtime
780 minLongest runtime
225 minShortest runtime
Power & durability
Battery type
SL-B34 rechargeable lithium-ion battery pack
SL-B26 rechargeable Li-Ion USB battery pack; also accepts CR123A lithium batteries
Charging type
USB-C charging port accessible without removing the battery
USB rechargeable
Rechargeable
Yes
Yes
IP rating
IPX7 waterproof to 1m for 30 minutes
IPX7
Impact resistance
2 m (7 ft)
2 m (7 ft)
Material
Machined anodized aluminum alloy body with unbreakable polycarbonate lens
High-impact, super-tough nylon polymer
Use case profile
Best for
Everyday carryOutdoor useHigh-lumen requirement
Right-angle flashlight useHands-free lighting when attached to gearProfessional, industrial, and outdoor tasks
Common praise
Compact size with high outputSmooth and focused beamConvenient USB-C charging without battery removalDurable machined aluminum buildLong runtime on low settings
Bright 500 lumen output with balanced beamRugged and waterproof designConvenient USB rechargeable battery and multi-fuel capabilityHands-free use with clip and D-ring attachment
Common complaints
Charging port cover prone to opening accidentallyPocket clip not securely attachedHigh output can be too bright for close work
No information on complaints in available sources