Comparison Console
Nitecore NU25 UL vs Nitecore NU40
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Nitecore NU25 UL stands out as the lightest option for weight, with about a 61% gap from the closest alternative. Nitecore NU25 UL stands out as the cheapest option for retail price, with about a 39% gap from the closest alternative. Nitecore NU40 stands out as the highest output option for max lumens, with about a 150% gap from the closest alternative.
Decision Signals
What stands out
Nitecore NU25 UL stands out as the cheapest option for retail price, with about a 39% gap from the closest alternative.
Nitecore NU40 stands out as the most expensive option for retail price, with about a 65% gap from the closest alternative.
Nitecore NU25 UL stands out as the lightest option for weight, with about a 61% gap from the closest alternative.
Nitecore NU40 stands out as the heaviest option for weight, with about a 158% gap from the closest alternative.
Nitecore NU25 UL stands out as the lowest output option for max lumens, with about a 60% gap from the closest alternative.
Nitecore NU40 stands out as the highest output option for max lumens, with about a 150% gap from the closest alternative.
Nitecore NU25 UL stands out as the shortest runtime option for max runtime, with about a 63% gap from the closest alternative.
Nitecore NU40 stands out as the longest runtime option for max runtime, with about a 167% 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$37Cheapest
US$61Most expensive
Weight
45 g (1.59 oz)Lightest
116 g (4.09 oz)Heaviest
Length
60.1 mm (2.37 in)Shortest
79.8 mm (3.14 in)Longest
Output
Max lumens
400 lmLowest output
1000 lmHighest output
Max candela
1029 cdLowest candela
2700 cdHighest candela
Beam distance
64 m (210 ft)Lowest
100 m (328 ft)Highest
Max runtime
2700 minShortest runtime
7200 minLongest runtime
Power & durability
Battery type
Built-in 650mAh Li-ion
Built-in 18650 Li-ion 2600mAh rechargeable
Charging type
USB-C (~1.5 hours)
USB-C (5V 2A)
Rechargeable
Yes
Yes
IP rating
IP66
IP68
Impact resistance
1 m (3 ft)Lowest
2 m (7 ft)Highest
Material
ABS plastic
PC plastic rear housing with aluminum alloy front housing
Use case profile
Best for
Ultralight hikingBackpackingTrail runningAlpine climbingNighttime outdoor activities
HikingTrail runningCampingCyclingMaintenanceOutdoor activities
Common praise
Exceptional lightweight at 45g with good outputVersatile dual-beam (spot and flood) optionsAccurate and long runtimes especially ultralow modeFast USB-C charging (~1.5 hours)Comfortable and secure lightweight strapIP66 weatherproofing for rugged outdoor useClear battery level indicators
Lightweight and compact designHigh maximum output with uniform beamLong runtime especially on low modesUSB-C fast rechargeableDurable construction with good heat dissipationMultiple brightness levels and special modes including red light for night vision preservation
Common complaints
Red light mode is too bright and lacks dimming optionsNon-replaceable built-in battery limits long-term maintenanceUser interface is complex and requires reading the manualShock cord strap may not suit users preferring traditional padded bandsBattery capacity modest for extended multi-week trips
Runtime on highest output (Turbo) is limitedSome users may prefer longer beam distance for certain tasks
Dataset Expansion
Missing a brand?
Suggest an EDC brand for CarryCrew to research and add to the comparison database.
Community indexing queue online