Features:

• Specially designed for Self-defense and Law Enforcement use
• Unique Infinitely Variable Digital-controlled Brightness System
• Two-stage memory function, can be switched easily
• Built in CREE R2 WC high efficiency LED (Light Emitting Diodes)
• Maximum output 220 lumens
• Prominent runtime
• Tactical forward clicky switch
• Battery Reverse-Polarity Protection
• Anti-rolling rugged design
• Bezel down clips
• Metal reflector
• Impact-resistant optical window with anti-reflective coating
• Made from military grade aluminum alloy, really strong
• Compact size and light weight, suitable for EDC (every day carry)
• Mil-spec Type III Hard Anodized finish
• Resistance to impact by dropping according to US MIL-STD-810F
• Waterproof to IPX-8 standard
• "SF" E serial body compatible

Specification:

• Dimension: Total length 92mm;Diameter 26mm
• Weight: 65g
• Battery: powered by one CR123 battery or Li-ion battery

Output & Runtime:
CR123 battery
Maximum output 210 lumens, for about 75 minutes (with brightness declines to 50%)
Minimum output 2 lumens, for about 120 hours (with brightness declines to 50%,and depends on LED VF)
Li-ion Battery
Maximum output 220 lumens, for about 50 minutes (with brightness declines to 50%)
Minimum output 2 lumens, for about 35 hours (with brightness declines to 50%)