Nitecore UT27 MCT Pro HLB1500 Li-ion Battery Pack/AAA 800 Lumens 3 Color Temperatures Running Headlamp White. Developed with insights from professional trail runners it outputs a powerful 800 lumens with a beam reaching 183 yards making it ideal for trail running hiking camping and night walks. The UT27 MCT offers three selectable color temperatures: 3000K warm light for better visibility in rain fog and snow; 4500K neutral white for clarity on steep slopes streams and muddy terrain; and 6500K cool white for maximum brightness and contrast during camping or urban night running. It also includes a red light mode with steady or flashing options to preserve night vision and enhance situational awareness. Dual switches allow fast intuitive control for light selection cycling between modes and adjusting brightness on the go.For power the UT27 MCT includes a USB-C rechargeable HLB1500 battery pack and is also compatible with 3AAA batteries for backup flexibility. A built-in power indicator shows charging status while lockout mode prevents accidental activation. With ultra-low standby power it stays ready year-round and a glow-in-the-dark battery compartment makes replacements easy in the dark. Weighing just 2.61 ounces (with battery and headband) the UT27 MCT is an excellent running companion. The breathable headband features a silicone strip that keeps the lamp secure and channels sweat away from the eyes while reflective decals boost nighttime visibility. Rugged and reliable the UT27 MCT withstands 1-meter drops and carries an IP66 rating protecting against heavy rain and splashes. Specifications for Nitecore UT27 MCT Pro HLB1500 Li-ion Battery Pack/AAA 800 Lumens 3 Color Temperatures Running Headlamp: Manufacturer: Nitecore Beam Color: Warm White Neutral White White Light Output: 800 lumens Application: Work Battery Type: Lithium Ion AAA Bulb Type: LED Fabric/Material: Durable PC Weight: 2.61 oz Beam Distance: 168 m Water Resistance Level: IP66 Weather Resistance: Impact Resistant Features of Nitecore UT27 MCT Pro HLB1500 Li-ion Battery Pack/AAA 800 Lumens 3 Color Temperatures Running Headlamp Features Max brightness of 800 lumens with a183 yard throw Features 3 CRI color temperatures: warm light neutral white cool white Can use both the Nitecore HLB13000 Li-ion battery pack or 3 x AAA batteries Includes a multipurpose clip for various ways to use it Package Contents: Nitecore UT27 MCT Pro HLB1500 Li-ion Battery Pack/AAA 800 Lumens 3 Color Temperatures Running Headlamp 2x Nitecore HLB1300 Rechargeable Li-ion Battery Pack USB-C to USB-C Charging Cable Clip Diffusing Stuff Sack Nitecore 6952506409433: UT27 MCT Pro HLB1500 Li-ion Battery Pack/AAA 800 Lumens 3 Color Temperatures Running Headlamp White