Features:

• With the SmartRing series, users can conveniently choose brightness and functions according to own habits
• CREE R2 high efficiency LED, Max output 240 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: 240 Lumens for up to 50 minutes.
Low: 5 Lumens for up to 40 hours.