Nitecore UT27 800 Rechargeable LED Head Torch

The Nitecore UT27 800 is a dual power LED head torch designed with trail runners and long distance runners in mind, offering triple light sources that include a uniform TrueVision+ view with a warm white light, a cool white light and an auxiliary red light output.

The UT27 800 utilises an optical dual-lens system featuring a warm white LED with a colour temperature of 3000 K which is better at cutting through, rain, fog or snow and ideal for sign searching when out trail running. The cool white LED with a colour temperature of 6500 K is perfect for various outdoor activities.

The UT27 800 is control by two push buttons on the top of the torch. The W button operates the white light and is turned on with a long press, and then short presses will changed between the white low, white medium, white high. The Y button operates the flood light and is turned on with a long press, and then short presses will changed between warm low, warm medium and warm high. The 800 lumen turbo burst output is activated by double pressing either button while the light is on. It will remain in turbo for 30 seconds before reverting back to the previous mode, or you can single press the button to exit sooner.

In the centre of the main lights there is two red auxiliary LEDs that offers a constant red output and a red flashing setting. Red light preserves your night vision and is good for wildlife observation, astronomy and night photography. To access the red light double press either button with the light off and it will turn on in constant mode, and a press of either button will cycle to the red flashing. When the light is on in any mode, long press the button to turn it off.

The UT27 800 has a lockout function to prevent accidental activation in transit or when not in use, and is put into lockout mode by simultaneously holding both buttons down, with the light on or off, until the floodlight flashes to confirm lockout mode is entered. To exit lockout mode hold both buttons down again.

It has a dual power system and can use either the USB-C rechargeable 1300 mAh lithium-ion battery pack, or 3 x AAA alkaline batteries which is useful as a back up or while the lithium-ion battery packs are on charge. The battery compartment itself is glow in the dark on the inside, so if you need to stop and replace the batteries while running in the dark, you can easily see where the battery polarities are to correctly change them over.

To charge the battery packs, first remove it from the battery compartment and then insert the included cable into the USB-C port of the battery, and connect the other end to a USB power source. The charging indicator will light up red to show charging is in progress, and turn green once charging is complete after approximately 1 hour, 50 minutes.

A built-in battery indicator will display battery power when either button is short pressed with the light off. Four lights mean the battery is 100%, three flashes is around 75% power, two flashes is around 50% power and one flash is around 25% power and the battery should be charged or replaced. The integrated advanced temperature regulation (ATR) technology regulates the output of the UT27 according to the working condition and ambient environment to maintain the optimal performance.

The adjustable headband has been upgraded with a new weave structure which enhances the elasticity and breathability providing a comfortable fit to the head. It features reflective writing on the outside for visibility to others, and a silicone strip on the inside of the head band to channel away sweat as well as provide a non-slip fit. Additionally the head torch is on a hinged bracket, allowing the light to be easily rotated and adjusted within a 90° angle. A stuffing sack is also included which can act as a light diffuser to provide ambient lighting, or can store the head torch when not in use.

Product Features

Can be rotated 90° within headband bracket
Choice of two colour temperatures
Warm Spot or cool flood lighting
USB-C rechargeable lithium-ion battery pack
Dual power source
Lightweight ergonomic design

Modes

Using the included 1300 mAh lithium-ion battery:
Turbo: 800 lumens; 160 m beam range*
White High: 500 lumens; 2.5 hours run-time; 132 m beam range
White Medium: 280 lumens; 5.5 hours run-time; 104 m beam range
White Low: 100 lumens; 11 hours run-time; 63 m beam range
Warm High: 500 lumens; 2.5 hours run-time; 124 m beam range
Warm Medium: 280 lumens; 5.5 hours run-time; 91 m beam rang
Warm Low: 55 lumens; 11 hours run-time; 16 m beam range
Red Constant: 10 lumens; 20 hours run-time; 6 m beam range
Red Flashing: 10 lumens; 40 hours run-time

Using 3 x AAA alkaline batteries:
Turbo: 800 lumens; 160 m beam range*
White High: 500 lumens; 1.5 hours run-time; 132 m beam range
White Medium: 280 lumens; 3 hours run-time; 104 m beam range
White Low: 100 lumens; 7 hours run-time; 63 m beam range
Warm High: 500 lumens; 1.5 hours run-time; 132 m beam range
Warm Medium: 280 lumens; 3 hours; 91 m beam range
Warm Low: 100 lumens; 7 hours run-time; 56 m beam range
Red Constant: 10 lumens; 16 hours run-time
Red Flashing: 10 lumens; 32 hours run-time

Note: 
*There is no run-time for turbo as it is a burst setting and works for 30 seconds at a time and may not be available when battery voltage is too low.

Tested to ANSI/PLATO FL 1-2019 standards in laboratory conditions. The data may vary slightly in real world use depending on battery type, individual usage habits and environmental factors.

Technical Details

Type: LED head torch
Operating Modes: Turbo / White High / White medium / White Low / Warm High / White Medium / White Low / Red Constant / Red Flashing
Luminous Flux: Up to 800 lumens
Beam Range: Up to 132 m
Compatible Batteries: 1 x HLB1300 lithium-ion battery pack / 3 x AAA alkaline batteries
Dimensions: 56 x 46.6 x 32 mm
Weight: 74 grams (including battery)
Body Colour: Black
Body Material: Durable PC
Switch Type: Dual push button
Impact Resistance: 1 m
Environmental: IPX6
Warranty: 5 years

Packaging and Contents

Supplied in retail packaging and includes:
Nitecore UT27 800 LED head torch x 1
HLB1300 lithium-ion battery pack x 1
USB-C charging cable x 1
Diffusing stuff sack x 1
Manual x 1