Lightweight and compact at 95.5g
Flashlight Record
Nitecore
Nitecore NU31
Triple output USB-C rechargeable headlamp with 550 lumens max output, 145 meters beam distance, long 147h runtime on low mode, and durable aluminum front housing.
Last updated
Weight95.5 g (3.37 oz)
PriceUS$39.95
Max lumens550 lm
BatteryBuilt-in 1800mah Li-ion Battery
Technical Specs
Specifications
CategoryHeadlamp
Length62.3 mm (2.45 in)
Head diameter46 mm (1.81 in)
Body diameter35.6 mm (1.40 in)
Max lumens550 lm
Max candela5800 cd
Beam distance145 m (476 ft)
Max runtime8820 min
Battery typeBuilt-in 1800mah Li-ion Battery
RechargeableYes
Charging typeUsb-c Charging Port (5v 1a)
IP ratingIP66
Impact resistance1 m (3 ft)
MaterialAluminum Alloy Front Housing With Durable Pc Material Body
Switch typeDual Button Interface
Output Profile
Modes
TurboHighMidSOSBeaconAuxiliary White LowAuxiliary White Ultra LowAuxiliary Red Constant OnAuxiliary Red Slow Flashing
Carry Profile
Best for
Outdoor ActivitiesCampingHikingNight TrekkingSkywatching
Field Signals
Common praise
Versatile lighting modes including white, red, and high CRI auxiliary white light
Long battery runtime up to 147 hours
Good waterproof rating (IP66) and 1 meter impact resistance
USB-C fast charging with short recharge time
Simple dual-button interface for easy operation
Reflective headband for safety
Watchlist
Common complaints
Charging time varies between 1.5 to 3 hours depending on source
Slight green tint on white LED reported
Cannot replace internal rechargeable battery
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