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- Whisper-weight polycarbonate construction great for trail running
- Dual light sources supply up to 360 lumens of light
- Built-in li-ion battery delivers runtimes reaching 37 hours
- Red light source preserve night vision and provide emergency signaling ability
- IP Rating: IP66
- Batteries Included?: Yes
- Rechargeable: Yes
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Description
Nitecore NU21
Lightweight Runner's Headlamp
The highly mobile lightweight build of the Nitecore NU21 makes it a first-class lighting companion for runners. With two lamps delivering up to 360 lumens, your path will be well-lit by a soft, uniform dual beam. 5 brightness levels let you adapt to the time of day and your environment. Switch brightness levels easily by activating the double switch which has distinct controls operable with one hand. A rechargeable 500mAh lithium-ion battery will supply the runtime you need, reaching a max of 37 hours of operation.
Multiple Safety Features
The NU21 features an auxiliary red light which preserves night vision and has excellent signaling capability. Constant-on or slow flashing modes can provide your location to others. The headband is also designed with safety in mind, as it is both reflective and glows in the dark. This will enable passersby to see you even when the light source is not facing them, enhancing your safety.
| High | Med | Low | Ultralow | SOS | Beacon | |
| Brightness | 360lumens | lumens | 60lumens | 6lumens | 360lumens | 360lumens |
|---|---|---|---|---|---|---|
| Runtime | hours | hours | hours | 37hours | - | - |
| Distance | 58meters | 39meters | 24meters | 6meters | - | - |
| Constant-On | Slow Flashing | |
| Brightness | 5lumens | 10lumens |
|---|---|---|
| Runtime | 26hours | - |
| Distance | 4.5meters | - |
- Notable Features
- » Dual button user interface easy to operate with one hand in the dark
- » Reflective, glow-in-the-dark lightweight headband offers additional safety
- » 4-stage power indicators give you your battery status at a glance
- » IP66 weather rating great for trips through rainy or sandy conditions
Item Details
| Brand | Nitecore |
| SKU | NITECORE-NU21-BLACK |
| Series | NU |
| Manufacturer Part Number | NU21-BLACK |
| UPC | 6952506407750 |
| Color | Black |
| Primary Material | Polycarbonate |
| Max Lumens (lm) | 360 |
| Max Throw (m) | 58 |
| Rechargeable | Yes |
| Batteries Included? | Yes |
| Switch | Dual Body Switch |
| Length | 2.37 in (60 mm) |
| IP Rating | IP66 |
| Typical Uses | Hiking, Running, Walking |
| In the Box | Batteries, Headstrap |
Specifications
| IP Rating | IP66 |
| Drop Resistance | 3.28 ft (1 m) |
| Switch | Dual Body Switch |
| Primary Material | Polycarbonate |
Output Details
| Max Lumens | 360 |
| Max Throw | 58 m (190 ft) |
Power Details
| Batteries Included? | Yes |
| Rechargeable | Yes |
| Charge Style | In-Body Rechargeable |
| Charge Connector | USB-C |
Unit Dimensions
| Length | 2.37 in (60 mm) |
| Width | 1.3 in (33 mm) |
| Height | 1.0 in (25 mm) |
| Weight | 1.55 oz (44 g) |
Certifications & Transport
| Certifications/Standards | ANSI |
| Country Of Origin | China |
| HTS Code | 85131020 |
Packaging/Shipping Dimensions
| Length | 3.42 in |
| Width | 3.33 in |
| Height | 1.96 in |
| Shipping Weight | 0.22 lb |
Additional Details
| Packaging | Boxed |
| Warranty |
Nitecore 2 Year Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
| Glossary | Flashlight Glossary |
Bright Buys
- Reliable lithium chemistry with a 10 year shelf life
- Regarded as one of the highest quality CR123A batteries on the market
- Used in LED flashlights, alarm systems, ranger finders and more
- Cells are lightweight, durable and ideal for long term storage
- Jacket style may vary
- Ideal for low-drain applications that require a primary battery to provide constant power
- 10-year shelf life - stock up for emergencies!
- The best choice for consistent power, great in low-drain devices like remotes
- Safe and reliable - capable of performing in high or low temperatures
- 11-in-1 card sized tool fits in your wallet or on a keychain!
- Packed with handy tools including a screwdriver & 7 wrench settings
- Serrated saw and straight-edge knife for quick cutting jobs
- Can + bottle openers for campsite meals or end-of-shift relaxation
- Four-channels saves time by charging multiple batteries at once.
- Capable of charging multiple chemistries by automatic battery detection.
- LCD display reveals the charging progress, battery type, voltage, and charging current.
- Automatic power-off function cuts off the current when charging is complete.
- Extremely compact and powerful EDC
- Max output of 3,000 lumens with a max throw of 229 meters
- Dual fuel and available with extender for use with a 26650
- Equipped with 4 x CREE XPG3 LEDs for maximum illumination
- 225mAh capacity drives long runtimes for watches and electronics
- CR2032 coin cells packed with 3V of power
- Convenient 6-piece retail card provides backup batteries
- Easily replaceable primary lithium cells
- Top recommended battery for Apple AirTags
- 3,000 lumens and a 250-meter throw - fierce illumination to light up your backyard
- Multiple output modes are accessible via easy side switch operation
- Strobe, SOS, and beacon modes offer distinct signaling capability
- High-capacity battery supports the light with a maximum 227-hour runtime
- Upgraded to output up to 3,100 lumens with a 1,000ft throw for optimal spotting!
- Offers fast, direct USB-C recharging from outlets, power banks, and more
- Ultra-slim design provides an easy-to-hold, simple EDC lighting solution
- OLED screen monitors performance, including charge level, brightness & beyond
- Pre-shrink wrapped Panasonic CR123A batteries great for OEM use & more
- 1550mAh high capacity keeps lights, alarms & more running longer
- Lithium cells with stable 3V output and strong discharge performance
- Storage life of up to 10 years ensures backups remain ready for use
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