NitecoreHeadlamp
Nitecore NU21
Nitecore NU21 is a headlamp released in 2023. Key specs: maximum output 360 lm, beam distance (ANSI FL1) 58 m, peak beam intensity 840 cd, maximum runtime 37 h.
4.8Score
Brightness & throw3.2
Battery & charging3.6
Build & durability5.6
Features5.9
price range$25–35
360 lmMaximum output
58 mBeam distance (ANSI FL1)
840 cdPeak beam intensity
37 hMaximum runtime
Built-in Li-ion / Li-PoBattery
IPx6Water protection (IPx)
44 gWeight
Spec guide
How it ranks among headlamps of 2023
Maximum output · 360 lmBottom 26%Beam distance (ANSI FL1) · 58 mBottom 11%Peak beam intensity · 840 cdBottom 7%Maximum runtime · 37 hBottom 46%Water protection (IPx) · IPx6Bottom 28%Weight · 44 gTop 8%
Compared with headlamps released in 2023. Bars show the share of models it beats.
compared with other headlamps
Why is NU21 a good choice?
Weight: 44 gbetter than 95% of headlamps
Weak points
Peak beam intensity: 840 cdworse than 95% of headlamps
Beam distance (ANSI FL1): 58 mworse than 89% of headlamps
Battery capacity: 500 mAhworse than 99% of headlamps
In rankings
Specifications
Full specifications
Light output
- Maximum output
- 360 lm
- Peak beam intensity
- 840 cd
- Beam distance (ANSI FL1)
- 58 m
LED & beam
- Number of LEDs
- 2
Battery & charging
- Battery capacity
- 500 mAh
- Maximum runtime
- 37 h
- Rechargeable
- Yes
- USB-C charging
- Yes
- Battery level indicator
- Yes
Build & durability
- Protection rating
- IP66
- Water protection (IPx)
- IPx6
- Impact resistance (drop)
- 1 m
Size & weight
- Weight
- 44 g
Modes & features
- SOS / beacon
- Yes
- Red light
- Yes
- Lockout
- Yes
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
In collections
Flashlights — Body material: Plastic / polymer + weight up to 100 g48Flashlights: Rechargeable + weight up to 50 g53Flashlights — Red light + Body material: Plastic / polymer58Flashlights — Battery: Built-in Li-ion / Li-Po + red light67Flashlights — Battery: Built-in Li-ion / Li-Po + weight up to 100 g69Flashlights — Battery: Built-in Li-ion / Li-Po + Body material: Plastic / polymer71Flashlights — Body material: Plastic / polymer + weight up to 200 g73Flashlights: Red light + weight up to 100 g79
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