The Nitecore HA27 UHE High CRI Modular Headlamp delivers a maximum output of up to 800 lumens with a beam distance of 150 metres, powered by advanced NiteLab MCT UHE LEDs. Designed for versatility, it features three light sources and three power options, offering adaptable illumination for a wide range of outdoor and professional applications.

The headlamp provides three selectable colour temperatures: a CRI 97 3000K warm light for clear visual perception in high-risk environments; a CRI 83 4500K neutral white light for use in medium-risk technical terrain; and a CRI 73 6500K cool white light, ideal for everyday environments such as camping or night running where a bright output and extended runtime are essential. Its four dual-core MCT UHE LEDs ensure high illumination efficiency, true-to-life colour rendering, and reliable performance in unpredictable outdoor conditions.

In addition to white light modes, the HA27 UHE includes a red light, which preserves night vision, minimises insect attraction, and can be used for emergency signaling or safety warnings.

The headlamp offers a runtime of up to 65 hours and can be powered by the included HLB1500 Li-ion battery pack or three AAA alkaline batteries. A dual-button interface allows intuitive operation, with the power button controlling on/off and brightness levels, while the mode button enables seamless switching between colour temperatures. The HA27 UHE also features a lockout mode, activated by pressing both the power and mode buttons simultaneously for two seconds, preventing accidental activation during transport or storage.

Engineered for performance and durability, the HA27 UHE features an ultra-lightweight magnesium alloy heat sink and integrated air ducts between the body and the detachable modular battery case, effectively conducting heat and stabilises brightness and runtime.

Weighing just 75 grams, the HA27 UHE is exceptionally lightweight and comfortable, featuring a breathable headband with reflective detailing for enhanced visibility and safety. A multi-purpose clip is included, allowing four mounting configurations for versatile use and convenient carry. Also included is a diffusing stuff sack, enabling the headlamp to function as a camping lantern or ambient light, as well as providing storage when the headlamp is not in use.

Brightness Levels:
Powered by 1x Nitecore HLB1500 Li-ion Battery Pack:
Primary light: ( Neutral White Light / Warm Light / Cool White Light)
Turbo: 800 lumens, 2hrs runtime, 150 meters
High: 500 lumens, 3hrs 30mins runtime, 120 meters
Mid: 280 lumens, 7hrs runtime, 94 meters
Low: 100 lumens, 15hrs runtime, 54 meters
Ultralow: 8 lumens, 65hrs runtime, 15 meters

Primary Light: (Neutral White Light)
SOS: 800 lumens
Beacon: 800 lumens

Auxiliary Red Light:
High: 15 lumens, 11hrs runtime, 7 meters
Low: 5 lumens, 34hrs 30mins runtime, 6 meters
Slow Flashing: 15 lumens

Powered by 3x Alkaline AAA Batteries:
Primary light: ( Neutral White Light / Warm Light / Cool White Light)
High: 500 lumens, 2hrs 30mins runtime, 120 meters
Mid: 280 lumens, 3hrs runtime, 94 meters
Low: 100 lumens, 9hrs runtime, 54 meters
Ultralow: 8 lumens, 52hrs runtime, 15 meters

Primary Light: (Neutral White Light)
SOS: 500 lumens
Beacon: 500 lumens

Auxiliary Red Light:
High: 15 lumens, 6hrs 30mins runtime, 7 meters
Low: 5 lumens, 24hrs runtime, 6 meters
Slow Flashing: 15 lumens

This headtorch has a waterproof rating of IPX6 and an impact resistance of up to 1 meter.

The HA27 UHE includes: 1x Nitecore HLB1500 Li-ion Battery Pack, MBC10 Battery Case, Clip and Diffusing Stuff Sack.