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Nitecore NU21


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44g, 360 Lumens, USB-C rechargeable headlamp! The NU21 lightweight rechargeable headlamp is the perfect companion for runners and outdoorsmen alike. Its unibody optical lens system is specifically designed for reflecting a uniform and soft light that can emit a max brightness of 360 lumens that can reach up to 57 meters, making it perfect for night running and route finding. The NU21 offers versatility with four brightness modes, as well as emergency SOS and beacon. Alternatively, switch to the dual red LEDs and protect your night vision or for a long-lasting signal light. Its ultra-low standby power consumption provides a 365-day ready experience while its highly efficient constant current circuit guarantees a comfortable visual experience.

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White light or red light outputs
Direct access to red light output to preserve night vision
Built-in power indicator reports remaining battery power
USB-C rechargeable with included cable
Lightweight elastic headband

Operational Modes

High: 360 lumens; 2 hours run-time; 58 m beam range
Mid: 170 lumens; 3 hours, 30 minutes run-time; 39 m beam range
Low: 60 lumens; 8 hours run-time; 24 m beam range
Ultralow: 6 lumens; 37 hours run-time; 6 m beam range
Red Constant: 5 lumens; 26 hours run-time; 4.5 m beam range
Red Flash: 10 lumens
SOS: 360 lumens
Beacon: 360 lumens

LED White and Red LED
Maximum Brightness 360 lumens
Peak Beam Distance 57 m
Peak Beam Intensity 840 cd
IP Rating IP66
Impact Resistance 1 m
Dimensions (L): 60.198 mm (W): 33.02 mm (H): 25.4 mm
Weight 44 grams


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