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html›body›main#compare1,338 models · updated Nov 10, 2026
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  3. NU31 vs NU33

Nitecore NU31 vs Nitecore NU33

What NU31 does better (2) and where NU33 wins (3) — every spec side by side.

Nitecore NU31
Nitecore · 2023NU31
7.4Score
2 advantages≈ $40
vs
Nitecore NU33
Nitecore · 2022NU33
7.8Score
3 advantages≈ $50
Higher score
6.6Brightness & throw6.8
7.2Battery & charging8.1
5.3Build & durability5.2
5.9Features5.9

Why is NU31 better than NU33?

  1. Beam distance (ANSI FL1)145 m vs 135 m+7%
  2. Peak beam intensity5,260 cd vs 4,578 cd+15%

Why is NU33 better than NU31?

  1. Maximum output550 lm vs 700 lm+27%
  2. Water protection (IPx)IPx6 vs IPx7+17%
  3. Battery capacity1,800 mAh vs 2,000 mAh+11%
Specifications

Side by side

Nitecore NU31Nitecore NU31≈ $407.4
Nitecore NU33Nitecore NU33≈ $507.8
Light output
Maximum output550 lm700 lm
Peak beam intensity5,260 cd4,578 cd
Beam distance (ANSI FL1)145 m135 m
Light sourceLEDLED
LED & beam
Number of LEDs4—
Colour rendering (CRI)—90
Battery & charging
Battery—AAA
Battery capacity1,800 mAh2,000 mAh
Maximum runtime147 h147 h
RechargeableYesYes
USB-C chargingYesYes
Charging time—1 h
Battery level indicatorYesYes
Build & durability
Protection ratingIP66IP66
Water protection (IPx)IPx6IPx7
Submersible to2 m—
Impact resistance (drop)—1 m
Body materialAluminiumAluminium
Size & weight
Head diameter / width130 mm—
Weight96 g96 g
Modes & features
StrobeYes—
SOS / beaconYesYes
Red lightYesYes
LockoutYesYes
Colours—Black
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