Features
With the SmartRing series, users can conveniently choose brightness and functions according to own habits
CREE XR-E high efficiency LED, Max output 220 Lumens
Military-grade aluminum alloy
Mil-Spec Type-III Hard-Anodized finish resists scratches
Stainless steel retaining ring on light bezel, effectively protects the light from drops and impacts
Tactical grip-ring on the tail
Special lanyard hole design
Anti-roll design.

Specification
Dimension: Head diameter 32mm, Tube diameter 22mm, Total length 107mm.
Weight:108 gram.
Battery: powered by one CR123 battery or one protected rechargeable Li-ion battery.


Output & Runtime:
Max: 220 Lumens for up to 50 minutes,R2 version 240 lumens.
Low: 5 Lumens for up to 40 hours.