Lightweight and compact design
Flashlight Record
Nitecore
Nitecore NU40
Lightweight, high performance USB-C rechargeable headlamp with max 1000 lumens output, built-in 18650 Li-ion battery, multiple brightness levels and red light mode, IP68 waterproof and impact resistant.
Last updated
Weight116 g (4.09 oz)
PriceUS$61
Max lumens1000 lm
BatteryBuilt-in 18650 Li-ion 2600mah Rechargeable
Technical Specs
Specifications
CategoryHeadlamp
Length79.8 mm (3.14 in)
Head diameter43.9 mm (1.73 in)
Body diameter46.1 mm (1.81 in)
Max lumens1000 lm
Max candela2700 cd
Beam distance100 m (328 ft)
Max runtime7200 min
Battery typeBuilt-in 18650 Li-ion 2600mah Rechargeable
RechargeableYes
Charging typeUsb-c (5v 2a)
IP ratingIP68
Impact resistance2 m (7 ft)
MaterialPc Plastic Rear Housing With Aluminum Alloy Front Housing
Switch typeDual Button Interface (separate On/off And Mode Switches)
Output Profile
Modes
TurboHighMediumLowUltra LowRed Light Constant OnRed Light Slow FlashSOSBeacon
Carry Profile
Best for
HikingTrail RunningCampingCyclingMaintenanceOutdoor Activities
Field Signals
Common praise
High maximum output with uniform beam
Long runtime especially on low modes
USB-C fast rechargeable
Durable construction with good heat dissipation
Multiple brightness levels and special modes including red light for night vision preservation
Watchlist
Common complaints
Runtime on highest output (Turbo) is limited
Some users may prefer longer beam distance for certain tasks
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