Specifications:

• LED: Cree XM-L Neutral White (Norminal CCT 4200K)
• User Selectable Levels: 3 main level (High, Medium and Low). Each main level can be configured to one of its two sub-levels. The second sub-level of the High (H2) can be further configured to different brightness levels or strobes.
• Light Output
  • High: H1 361Lm with 645Lm turbo in the first 3 min (2.3 hrs) or H2 146Lm (7 hrs) / 232Lm (4 hrs) / 361Lm (2.4 hrs) / 4Hz Strobe
  • Medium: M1 56Lm (18 hrs) or M2 18Lm (50 hrs)
  • Low: L1 2.4Lm (280 hrs) or L2 0.09Lm (80 days)
• Runtimes are tested using Panasonic NCR18650 (2900mAH) batteries. Light output are out the front (OTF) values. All levels are current regulated.
• Operating Voltage Range: 2.7V - 4.2V
• Battery: One 18650 size (up to 67mm long) 3.6/3.7V Li-ion rechargeable battery. Batteries are not included in the package.
• Parasitic Drain: Negligible (equivalent to 12 years)
• Beam Type
  • 80 degree spill
  • 12 degree hot spot
• Dimensions
  • Head Diameter: 0.95 inch (24.2 mm)
  • Length: 3.9 inch (99 mm)
• Weight
  • 1.4 oz (39 gram)

Features:

• Automatic stepping down from High to Medium, and from Medium to Low when the battery capacity is low
• Builtin over-discharging protection with 2.7V cutoff
• Electronic soft-touch switch
• Smart user interface provides fast and easy access to all brightness levels
• Precision machined unibody casing from premium grade Alcoa aluminum bar stock
• Proprietary heat sinking design bonds the LED board directly to the unibody aluminum casing, providing unblocked thermal paths to most of the surface area.
• Durable natural hard anodized finish (Type III Class I)
• Ultra clear lens with anti-reflection coatings on both sides
• Orange peel textured reflector
• Battery power can be locked out by slightly unscrewing the tailcap to prevent unwanted activations or parasitic drain
• Waterproof to IPX8 (2 meters, 30 minutes)

Operations:
This light has 3 main levels (High, Medium, and Low). Each main level can be configured to one of its two sub-levels. The second sub-level of the High can be further configured to different brightness levels or strobes.

• Basic Operation
  • Short click turns on the light to High or turns off the light.
  • Long click (press and hold for about 0.6 seconds) turns on the light to Low.
• Advanced Operation and Configuration
  • Short click turns on the light to High. Short click again quickly to cycle from High to Medium, and Low.
  • Press and hold to cycle from Low to High, release to set. When press and hold, the light always cycle from Low to High regardless which level you are currently in.
  • Double click to toggle and select between the two sub-levels for that main level. Sub-level selections (except the strobe) for the 3 main levels are memorized after the light is turned off and through battery changes.
  • The second sub-level of the High can be configured after 6 double clicks. Double click (startng with the 7th) to cycle and select different brightness levels or strobes. Short click to turn off the light when finishing configurations. The selections for the second sub-level of the High are memorized after the light is turned off and through battery changes.

Accessories in the package:

• One black silicone holder with headband
• Two o-rings