The Nitecore NU31 headlamp is  powerful, compact and ultra-light. This high-end headlamp provides 550 Lumens. The NU31 headlamp is an extremely powerful tool for a multitude of applications. The brightness level is easily adjusted using the switch above the lamp head, allowing mode change with one hand. The Nitecore NU31 headlamp is compact and perfect for hiking, camping, climbing and many other outdoor activities.... The NU31 features 'a deep beam of white light with a range of 145 meters.

Features of the Nitecore NU31 headlamp:

• Maximum power: 550 lumens
• Range: 145 m
• Battery life: from 4 hours to 147 hours depending on the mode chosen
  
• Power supply: 1 Li-ion battery Rechargeable 3.7V 1800m Ah (included)
• Shock resistance: 1 meter
• Waterproofing: IP66
• Rechargeable with micro-USB
• USB cable: Yes
• Tilt from top to bottom up to 60°
• 5 lighting modes: 6, 50, 60, 200, 550 lumens and 2 modes: Location and SOS and red light
  
• Charging indicator with on/off button
• Dimensions : 62.3 x 46 x 35.6 mm
• Poids avec batterie : 95,5 g