Designed to Meet the Demands of Adventurous Outdoor Activities

Advanced Optical Technology – With its high-tech lens, the NU21 gives you a clear, wide view without straining your eyes, making night hikes or runs much safer and more enjoyable.

White and Red Light – Need bright light to see far ahead or a softer glow to preserve night vision? The NU21’s got you covered with versatile modes perfect for any adventure.

Red Light Settings – The red light mode is a lifesaver for maintaining night vision and signaling for help without blinding your friends.

Ultra Lightweight and Comfortable – At just 44 grams, you’ll forget you’re wearing it. The headband is reflective and glow-in-the-dark for added visibility.

Integrated Rechargeable Battery – No more fumbling with batteries! It takes just 90 minutes to fully charge via USB-C, and you can use it while it’s charging.

Easy to Use Controls – Dual buttons give you one-handed control over different modes, so you can focus on the trail, not the tech.

Durability – Rain or rough trails are no match for the NU21. It’s water-resistant and built to withstand drops, so it’s ready for any adventure.

Equip Yourself with the Lightest Headlamp for Epic Adventures

For those who crave the thrill of the outdoors, every gram counts.

The Nitecore NU21, the lightest headlamp on the market at just 44 grams, offers unparalleled comfort and efficiency for your night-time escapades.

Its powerful beam provides reliable illumination, seamlessly transitioning from wide-open trails to dense forests.

With quick 90-minute USB-C charging and versatile white and red light modes, you’ll always be ready for the next challenge.

Dual button controls ensure effortless operation, making the NU21 an indispensable part of your adventure gear.

OUTPUT AND RUNTIME

MODE	LUMENS	RUNTIME	DISTANCE	INTENSITY
White Light
High	360	2h	58m	840cd
Mid	170	3h 30min	39m	399cd
Low	60	8h	24m	150cd
Ultralow	6	37h	6m	10cd
SOS	360	–	–	–
Beacon	360	–	–	–
Red Light
Constant-on	5	26h	4.5m	5cd
Slow flashing	10	–	–	–

*CERTIFIED ANSI/PLATO FL1 Standard

ANSI/PLATO FL1 Standard is a set of flashlight performance guidelines that confirms the light you’re buying has been tested to spec, and you’re not buying into false performance claims.

TECHNICAL SPECS

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High-performance white and red light
High-efficiency optical lens
Built-in 500mAh rechargeable Li-ion battery
White, Red, Red Flashing, SOS, Beacon
IP66, Weather Resistant
1 m
60.1mm x 33mm x 25.5mm (2.37″ x 1.30″ x 1.00″)
44 g / 1.55 oz
Download Instruction Manual (PDF)

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