Comparison Console
Acebeam X45 vs Streamlight Knucklehead Spot
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Acebeam X45 stands out as the lightest option for weight, with about a 18% gap from the closest alternative. Streamlight Knucklehead Spot stands out as the cheapest option for retail price, with about a 29% gap from the closest alternative. Acebeam X45 stands out as the highest output option for max lumens, with about a 9900% gap from the closest alternative.
Decision Signals
What stands out
Streamlight Knucklehead Spot stands out as the cheapest option for retail price, with about a 29% gap from the closest alternative.
Acebeam X45 stands out as the most expensive option for retail price, with about a 41% gap from the closest alternative.
Acebeam X45 stands out as the lightest option for weight, with about a 18% gap from the closest alternative.
Streamlight Knucklehead Spot stands out as the heaviest option for weight, with about a 22% gap from the closest alternative.
Streamlight Knucklehead Spot stands out as the lowest output option for max lumens, with about a 99% gap from the closest alternative.
Acebeam X45 stands out as the highest output option for max lumens, with about a 9900% gap from the closest alternative.
Streamlight Knucklehead Spot stands out as the shortest runtime option for max runtime, with about a 89% gap from the closest alternative.
Acebeam X45 stands out as the longest runtime option for max runtime, with about a 786% 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$234.9Most expensive
US$166.73Cheapest
Weight
535 g (18.87 oz)Lightest
655 g (23.10 oz)Heaviest
Length
156.7 mm (6.17 in)Shortest
234 mm (9.21 in)Longest
Output
Max lumens
18000 lmHighest output
180 lmLowest output
Max candela
109000 cdHighest candela
11000 cdLowest candela
Beam distance
660 m (2165 ft)Highest
210 m (689 ft)Lowest
Max runtime
18600 minLongest runtime
2100 minShortest runtime
Power & durability
Battery type
4 x 18650 Lithium-Ion (IMR) batteries
NiCd rechargeable battery pack or 4 AA alkaline batteries
Charging type
Unknown
Unknown
Rechargeable
Unknown
Yes
IP rating
IPX8 (submersible to 2m / 6.6')
IPX4
Impact resistance
1.2 m (4 ft)Lowest
2 m (7 ft)Highest
Material
Aircraft grade aluminum with Type III hard-anodized anti-abrasive finish, ultra-clear tempered glass with AR coating, stainless steel crenelated bezel
High-impact, super-tough nylon polymer
Use case profile
Best for
Search and rescueCampingHuntingSelf-drivingOutdoor illumination
FirefightingSearch and RescueSituations requiring articulating head beamDurability and long beam distance
Common praise
Extremely bright outputDigitally regulated output maintains consistent brightnessDurable build quality with aircraft grade aluminum and toughened glassMulti-mode output including strobe and fireflyLong battery runtimes on lower modes
Articulating 360-degree head for flexibilityLong beam distance of 210 metersMultiple brightness levels including long runtime moonlight modeDurable, shockproof construction with IPX4 water resistanceMagnet with strong pull for hands-free use
Common complaints
Can get hot on max output leading to step downHeavy weight for EDC at 535 gramsUser reports of customer service issues with warranty and import duties
Relatively heavy at 655 gramsBattery pack not included, uses either NiCd rechargeable battery pack or 4 AA alkaline batteriesCharging cords and chargers sold separately