Description
Offering three different light outputs, the Nitecore's Nitecore NU25 USB Rechargeable LED Headlamp is useful for a wide range of purposes. Its main emitter is a Cree XP-G2 S3 LED with four output levels from 1 to 360 lumens. It also has a second, 20-lumen white light with a high Color Rendition Index for tasks like reading that don't need as much candlepower, and a red light that preserves night-acclimated vision for night photography, astronomy or wildlife observation. The main light shines in a wide 100° cone, and the lamp can be tilted 60° to put the beam right where you need it. The lighting program features a total of seven preset constant-on output modes: low, medium, high, and turbo white; auxiliary white, and high and low red. There are also white SOS and location beacon and flashing red modes. Two push-button switches atop the unit also serve as battery power level indicators.
The waterproof and impact-resistant polycarbonate housing is impact-resistant to 1.5 m and is rated IP66 water-resistant. A rubber cover protects the micro-USB charging port. The lamp's battery charges in two hours, and runtimes range from 30 minutes on turbo to 160 hours on low. If the battery becomes fully drained, the light will still operate if plugged into any USB power supply (more likely as a lantern than a headlamp.) The elastic headband is designed to wick perspiration away from your face.
Features
1/40/220/360-Lumen Main Light
One Cree XP-G2 S3 White LED
Auxiliary Red & High-CRI White Lights
100° Light Cone/60° Lamp Tilting
SOS/Location Beacon/Flashing Red Modes
Top-Side Switches & Status Indicator
Built-In Rechargeable Li-Ion Battery
Micro-USB Charging Port
Polymer Body/Adjustable Headband
Waterproof/Impact-Resistant Body
Specifications
General
Lumen Output High: 190 Lumens
Medium: 38 Lumens
Minimum: 1 Lumen
Turbo: 360 Lumens
High (Red): 13 Lumens
Minimum (Red): 1 Lumen
White: 20 Lumens
Illumination Source 1 x LED
Beam Angle 100°
Estimated Runtime High: 5 Hours
Medium: 8 Hours
Low: 160 Hours
Turbo: 0.5 Hour
High (Red): 7.8 Hours
Low (Red): 68 Hours
Strobe (Red): 13 Hours
White: 6.3 Hours
Battery Type 1 x Built-In Lithium-Ion
Charging Time 2 Hours
Physical
Water Resistance Water Resistant, IP66
Impact Resistance Yes, 1.5 m
Dimensions (W x H x D) 5.6 x 3.6 x 2.3 cm
Weight 28 g