Comparison Console
Acebeam X45 vs Streamlight Knucklehead
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 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 8900% gap from the closest alternative.
Decision Signals
What stands out
Streamlight Knucklehead 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 stands out as the heaviest option for weight, with about a 22% gap from the closest alternative.
Streamlight Knucklehead 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 8900% gap from the closest alternative.
Acebeam X45 stands out as the shortest runtime option for max runtime, with about a 35% gap from the closest alternative.
Streamlight Knucklehead stands out as the longest runtime option for max runtime, with about a 55% 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
200 lmLowest output
Max candela
109000 cdHighest candela
1150 cdLowest candela
Beam distance
660 m (2165 ft)
Unknown
Max runtime
18600 minShortest runtime
28800 minLongest runtime
Power & durability
Battery type
4 x 18650 Lithium-Ion (IMR) batteries
Rechargeable NiCd battery pack or 4 AA alkaline batteries
Charging type
Unknown
AC and DC fast chargers, universal steady charger optional
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
Work site illuminationProfessional use in emergency services
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
Bright 200 lumens with regulated intensityMultiple lighting modes including moonlight for extended runtimeDurable, impact and water resistant designRemovable strong magnet 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
No charger included with this specific purchase option