As the Flagship product series of Nitecore flashlights, the Concept Series combines the revolutionary performance with innovative design, intending to make a breakthrough in current illumination industry and bring a brand new illumination experience to users. Concept 1 is small and exquisite with 2.18oz weight and 111.5mm length, the size is as small as a 18650 battery, thus it is easy to put into pocket or packsack.

Features:

• Stainless Steel Pocket Clip
• Magnetic Tailcap to attach to metal surfaces
• Constant Current Circuit Board designed to provide a constant beam of illumination
• ATR Module adapts your output to the surrounding environment
• Made from Aero grade aluminum allow with an HAIII Military anodized finish

Specifications:

• LED: CREE XHP35 HD E2
• Power Source: 1 x 18650, 2 x CR123
• Peak Beam Distance: 220 meters (721.79 ft.)
• Peak Beam Intensity: 12,100 cd
• Brightness Outputs (Using 1 x 18650):
  • Turbo 1800 Lumens - 3 Minutes
  • High 810 Lumens - 1.5 Hours
  • Medium 300 Lumens - 4 Hours
  • Low 80 Lumens - 15 Hours
  • Ultralow 1 Lumen - 300 Hours
• Brightness Outputs (Using 2 x CR123):
  • High 810 Lumens - 1.25 Hours
  • Medium 300 Lumens - 3.5 Hours
  • Low 80 Lumens - 13 Hours
  • Ultralow 1 Lumen - 200 Hours
• IPX Rating: IPX-8
• Impact Resistance: 1.5 meters (4.92 ft.)
• Dimensions:
  • Length - 4.39" (111.5 mm)
  • Head Diameter - 0.96" (24.5 mm)
• Weight: 2.18 oz. (61.9 g)