Cree Red LED to preserve night vision... has the ability for extremely low light output on the lower modes, yet lots of output in the high mode!

Specifications:

CREE XR-C RED LED

Current regulated, maintains constant brightness throughout its runtime.

33 Lumens (2.4 hrs) on High, you can also toggle this level to strobe at 4 Hz

4  Lumens (24 hrs) on Medium, you can also toggle this level to a slow strobe at 1 Hz

0.8 Lumen (5 days) on Low, you can also toggle this level to obtain a super-low 0.1 Lumen output that will run for 13 days.

Light output and runtimes were measured using a Sanyo 2700 mAh NiMH battery. Light output measurements are true "out the front" values.

Battery: 

One AA size alkaline, 1.5v lithium primary, NiMH rechargeable, or 3.7v 14500 Li-ion rechargeable.

Reverse polarity protection.

Beam Type: 80 degree flood, with no hotspot

Construction:

Soft touch push button switch, with a minimum operating life of one million cycles.

Recessed impact resistant LEXAN polycarbonate lens.

Precision machined body made of premium grade Alcoa aluminum alloy billet, for light weight and superior structural strength.

Electrically conductive aluminum body provides inherent EMI/RFI shielding.

Durable hard anodized finish (MIL-SPEC HA-III).

Waterproof: Meets IP68 in accordance with IEC 60529

Protected against continuous immersion (1 meter, 30 minutes)

Operation:

From Off...

Press and hold to cycle through Low, Med and High, release to set.

Or, from Off you can click switch and release quickly to go directly to High, click again and hold to quickly cycle through Low, Medium, and High.

You can also go directly to low from the Off position… just hold the switch for a ¼ second , then release. 

When On ...

Click switch for Off.

Press and hold to cycle through Low, Med and High, release to set.

When in the High mode, you can double click to toggle between Strobe mode and High.

When in the Medium mode, you can double click to toggle between Slow Strobe mode and Medium.

When in the Low mode, you can double click to toggle between Super-Low mode (0.1 Lumen) and Low.

Weights:

21 grams (0.74 oz)

41 grams (1.45 oz) with an alkaline battery

63 grams (2.22 oz) with a battery and headband

Dimensions:

Diameter 18.5 mm (3/4”)

Height 71.2 mm (2 3/4”)

Accessories included:

One black silicone holder with headband

One glow in the dark silicone holder

Removable pocket clip

Two spare o-rings