Streamlight 88105 Tl Series Tl-2 LED Tactical Lights, black - 160 Lumens C4 LED is 2X brighter than a Super high-flux LED  Up to 9000 candela (peak beam intensity); 160 lumens Black 6000 Series machined aircraft aluminum with anodized finish, tailcap/rotary on-off, removable pocket clip, adjustable wrist lanyard, Anti-roll head Two 3-Volt lithium batteries provide up to 3.5 hours of runtime to the 10% output level. Up to 3.5 hours of runtime to the 10% output level Length: 5.25-Inch (13.33 cm), major diameter: 1.25-Inch (3.18cm), body diameter: 0.90-Inch (2.29 cm)