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 343Lm with 612Lm turbo in the first 3 min (2.3 hrs) or H2 139Lm (7 hrs) / 220Lm (4 hrs) / 342Lm (2.4 hrs) / 4Hz Strobe
Medium: M1 53Lm (18 hrs) or M2 17Lm (50 hrs)
Low: L1 2.3Lm (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
Floody beam from frosted lens, with 90 degree spread
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)