High performance, versatile, all aluminum headlamps which can also be used as general purpose angled flashlights without the headband.

H600 XM-L Specs: (cool white version)
Beam Type: 80 degree spill, 12 degree hot spot
High:  H1 420Lm with 750Lm turbo in the first 3 min (2.3 hrs) or H2  170Lm (7 hrs) / 270Lm (4 hrs)/420Lm (2.4 hrs) / 4Hz Strobe
Med:   M1  65Lm (18 hrs)   or  M2  21Lm (50 hrs)
Low:   L1  2.8Lm (280 hrs)   or  L2  0.1Lm (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
LED: Cree XM-L Cool White (Norminal CCT 6300K)

H600w XM-L Specs: (neutral white version)
Beam Type: 80 degree spill, 12 degree hot spot
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
Med:   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
LED: Cree XM-L Neutral White (Norminal CCT 4200K)

H600F XM-L (cool white version)
Beam Type: 80 degree spill, 12 degree hot spot
High:  H1 361Lm with 712Lm turbo in the first 3 min (2.3 hrs) or  H2  146Lm (7 hrs) / 232Lm (4 hrs)/361Lm (2.4 hrs) / 4Hz Strobe
Med:   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
LED: Cree XM-L Cool White (Norminal CCT 6300K)

H600Fw XM-L Specs: (neutral white version)
Beam Type: 80 degree spill, 12 degree hot spot
High:  H1 361Lm with 612Lm turbo in the first 3 min (2.3 hrs) or  H2  146Lm (7 hrs) / 232Lm (4 hrs)/361Lm (2.4 hrs) / 4Hz Strobe
Med:   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
LED: Cree XM-L Neutral White (Norminal CCT 4200K)

Weight:
1.4 oz (39 gram)

Dimensions:
Head Diameter: 0.95 inch (24.2 mm)
Length:  3.9 inch (99 mm)

Battery: One 18650 size (up to 67mm long) 3.6/3.7V Li-ion rechargeable battery. Batteries are not included in the package.

Battery Shelf Life: Negligible (equivalent to 12 years)

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)

Included Items:
One black silicone holder with headband
Two o-rings

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 0.7 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.