The Nitecore NU27 headlamp has a maximum output of 600 lumens at a beam distance of up to 123 meters. This headlamp has a beam intensity of up to 3,705cd from the featured NiteLab MCT UHE LED and is powered by a built-in 850mAh li-ion battery with a maximum runtime of up to 57hrs. The light is the first of it's kind, offering 3 different colour temperatures including a 4500K neutral white, 3000K warm white and 6500K cool white.

The NU27 is compact and lightweight, weighing just 56 grams and features a reflective, skin-friendly headband made from a breathable material for comfortable wear and added visibility. Perfect for night time outdoor activities such as camping, trekking or night running and includes a four way clip to be placed in multiple directions to meet diverse lighting needs.

The head torch is operated by dual button interface, which includes a power button to turn light on, off and to adjust the brightness level, and a mode button which switches the colour temperature. This light has a lockout mode which is operated by a long press of both the power button and mode button for 2 seconds to avoid accidental activation when not in use.

The Nitecore NU27 features a diffusing stuff sack, enabling you to turn the headlamp into a camping lantern or to be used to store the headlamp.

The NU27 headlamp features intuitive power indicator lights located at the right side of the headlamp to keep track of power usage:
1 Constant-on : 0%-25% ( Please recharge or replace the battery promptly)
2 Constant-on : 25%-50%
3 Constant-on : 50%-75%
4 Constant-on : 75%-100%

Brightness Levels:
Primary Light (Neutral White Light/Warm Light/ Cool White Light:
Turbo: 600 lumens, 123 meters
High: 400 lumens, 3hrs runtime, 99 meters
Mid: 200 lumens, 6hrs 30 mins runtime, 70 meters
Low: 70 lumens, 13hrs runtime, 43 meters
Ultralow: 6 lumens, 57hrs runtime, 13 meters

Auxiliary Red Light:
High: 15 lumens, 8hrs 30 mins runtime, 7 meters
Low: 5 lumens, 27hrs runtime, 4 meters
Slow Flashing: 15 lumens

Primary Light (Neutral White Light)
SOS: 400 lumens
Beacon: 400 lumens

The Nitecore NU27 headlamp has waterproof rating of IP66 and an impact resistance if 1 meter.

Nitecore NU27 includes: NU27 with built-in battery, headband, USB-C to USB-C charging cable, clip and diffusing stuff sack.