NITECORE NU21
Ultra-light Headlamp for Outdoor Activities with Dual Light Source
– Maximum Brightness Power: 360 Lumens
– Weight only 44g
* These images are for guidance purposes only, actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved.

Advanced NITECORE head lenses are the ideal choice for professional trail runners.
– Scotty Hawker : 2021 2nd at UTMB CCC , 2019 3rd at UTMB
– Jiasheng Shen : 2019 HK100 Champion, 2020 Ultimate Tsaigu Trail (115km) Champion
– Fuzhao Xiang: 2020 HK100 Champion, 2022 7th at UTMB Women
– Rongrong Chen : Four times champion in Chongli 168 Ultra Trail (2018, 2019, 2020 and 2022), 2023 2nd in Amazean Jungle Thailand by UTMB (160km)

Ultra-simple design
We pursue lightness in every detail, aiming to provide lighter lenses for our users.
– Polycarbonate (PC) material: Lighter, more durable and more resistant to low temperatures.
– Support base with holes: Specially designed to lighten the load.
– Ultra-light elastic headband: Zero feeling of weight.

Unbelievably Light, only 44 grams!
Allows use for a long time without feeling heavy.
– Dimensions: 60.1mm x 33mm x 25.5mm   (Includes stand, battery and head strap)

Head strap specially designed, user friendly
To warn pedestrians and vehicles, to safeguard your safety at night
- Reflective ability.
– Glows in the dark.

Dazzling performance!
It uses a single-body lens system with over 94% light transmission and high-efficiency LEDs to reflect an even and soft light, ideal for night running and wayfinding.

Red light
Ideal for viewing maps, emergency response, stargazing, wildlife viewing, night photography and more.

Rechargeable from USB-C port
USB-C charging port is common in most devices now so you only need one charging cable.

It has a built-in 500mAh Li-ion rechargeable battery
Eco-friendly with multi-charge capability to help reduce the waste of 700+ AAA batteries during a battery life cycle

One-handed operation
Two-switch operating environment
– ​​MODE switch : Switch between light sources
– Power switch: On / Off and light intensity selection

Power indicator
Short press the MODE button, and the corresponding power indicators will light up.
– One solid blue indicator light indicates approximately 25% battery power
– Two solid blue indicator lights indicate approximately 50% battery power
– Three solid blue indicator lights indicate approximately 75% battery power
– Four solid blue indicator lights indicate approximately 75% battery power battery power at about 100%

Lock function, Prevent accidental activation.
In lock mode, any brightness levels or special functions are not available. It is an ideal function for carrying or storing the lens in a
backpack or pocket.

Ultra-low standby power consumption
Provides 365-day standby experience
Excellent constant current (Non-PWM) circuit performance.
The flicker-free constant brightness beam guarantees a comfortable viewing experience.

Available in three colors: Black, Yellow, White

Drop resistant up to 1 meter height
Waterproof with IP66 rating

Technical Data Table
* Note: The listed data has been measured using the built-in Li-ion battery (3.7V 500mAh) under laboratory conditions. Data may
differ in actual use due to different environmental conditions.

Features
– USB-C Dual Beam Outdoor Rechargeable Headlamp
– Specially designed for outdoor activities
– With a maximum output of 360 lumens
– Uses a multi-faceted unibody optical lens system to reflect even and soft light
– Built-in Li-ion battery 500mAh
– Highly efficient constant current circuit provides stable output with a maximum run time of 37 hours
– Designed with two differently shaped and tactile buttons, offering easy one-handed operation
– 4 brightness levels, 2 light sources and 3 special functions available
– Built-in smart Li-ion battery charging circuit with USB-C charging port
– Designed with 4 power indicator lights to indicate remaining battery power
– Made of durable Polycarbonate (PC) material
– Waterproof and dustproof IP66 rating
– Impact resistance up to 1 meter