Comparison Console
Nitecore NU25 UL vs ThruNite TH20
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 41% gap from the closest alternative. ThruNite TH20 stands out as the cheapest option for retail price, with about a 19% gap from the closest alternative. ThruNite TH20 stands out as the highest output option for max lumens, with about a 30% gap from the closest alternative.
Decision Signals
What stands out
ThruNite TH20 stands out as the cheapest option for retail price, with about a 19% gap from the closest alternative.
Nitecore NU25 UL stands out as the most expensive option for retail price, with about a 23% gap from the closest alternative.
Nitecore NU25 UL stands out as the lightest option for weight, with about a 41% gap from the closest alternative.
ThruNite TH20 stands out as the heaviest option for weight, with about a 69% gap from the closest alternative.
Nitecore NU25 UL stands out as the lowest output option for max lumens, with about a 23% gap from the closest alternative.
ThruNite TH20 stands out as the highest output option for max lumens, with about a 30% gap from the closest alternative.
Nitecore NU25 UL stands out as the shortest runtime option for max runtime, with about a 80% gap from the closest alternative.
ThruNite TH20 stands out as the longest runtime option for max runtime, with about a 393% 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$37Most expensive
US$29.99Cheapest
Weight
45 g (1.59 oz)Lightest
76 g (2.68 oz)Heaviest
Length
60.1 mm (2.37 in)Shortest
70 mm (2.76 in)Longest
Output
Max lumens
400 lmLowest output
520 lmHighest output
Max candela
1029 cdLowest candela
1120 cdHighest candela
Beam distance
64 m (210 ft)Lowest
67 m (220 ft)Highest
Max runtime
2700 minShortest runtime
13320 minLongest runtime
Power & durability
Battery type
Built-in 650mAh Li-ion
1x AA or 1x 14500 lithium ion battery
Charging type
USB-C (~1.5 hours)
Unknown
Rechargeable
Yes
Yes
IP rating
IP66
IPX-8 (2 meters)
Impact resistance
1 m (3 ft)Lowest
1.5 m (5 ft)Highest
Material
ABS plastic
Aircraft-grade aluminum with type III hard anodized finish
Use case profile
Best for
Ultralight hikingBackpackingTrail runningAlpine climbingNighttime outdoor activities
Hands-free lighting tasksCampingReadingOutdoor 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
Comfortable headstrap and lightweight designSmooth ramping user interface with mode memoryGood output for size and battery typeDurable anodized aluminum constructionWaterproof to IPX-8 standard
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
No on-board chargingNo low voltage protection for 14500 batteryLimited retention options — designed primarily for use with headstrapE-switch located on end can be slightly awkward to operate
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