Headlamp Nitecore NU43 1400 Lumens Compact Lightweight

The NITECORE NU43 is a rechargeable headlamp with an integrated 18650 Li‑ion battery that balances low weight, high capacity and long runtime. Its dual-beam design allows spotlight and floodlight to operate together for a maximum output of 1,400 lumens and uses a unibody optical lens system with over 94% light transmission to provide uniform, soft illumination suitable for road and signage observation.

Advantages

Weighing 116 g (4.09 oz) and built from stamped aluminum alloy at the front with a specialized PC plastic rear housing, the NU43 combines strength, comfort and lightness. The built-in 3,400 mAh 18650 battery delivers up to 15 hours runtime on the 100-lumen MID level, supports USB-C reversible charging and can be used while charging. The headband has a concealed silicone strip to manage sweat and prevent slipping, and the near-center-of-gravity bracket reduces forehead pressure and stays stable during activity. The unit is IP68 rated, 2 m impact resistant, and includes multiple protection features such as sensor protection, transport guarantee and lockout mode.

Suitable for

• Trail running and night hiking
• Trekking and camping
• Cycling and roadside repair
• Search tasks and wayfinding in low light
• Workstations or aid stations where controlled lighting is needed

Key specifications

• Maximum output: 1,400 lumens
• Battery: built-in 18650 Li‑ion, 3,400 mAh
• Weight: 116 g (4.09 oz)
• Charging: USB‑C reversible, supports use while charging, full charge in ~2 hours
• Runtime: up to 15 hours on 100 lm (MID level)
• Optics: unibody lens system, >94% transmission, TrueVision+ Technology
• Ingress protection: IP68
• Impact resistance: 2 m

How to use

To turn the NU43 on from off, long-press the Power Button for 1 second. While the light is on, long-press either button for 1 second to switch it off. The dual-button interface also provides direct access to the red light mode and an ULTRALOW level for minimal output. Connect a USB-C cable to charge the integrated battery; the headlamp can be operated while charging. The 72° adjustable bracket allows you to set the beam angle with one hand for optimal illumination.

Recommendations

For stable long-duration use, charge the NU43 fully before extended outings. Use the near-center-of-gravity bracket and widened headband for better comfort during running or prolonged wear. Enable lockout mode when transporting the headlamp to prevent accidental activation.