Two 3 Volt "CR 123A" lithium batteries with a shelf life of ten years.
Multi-function, push-button tactical tailswitch. One handed operation of momentary, variable intensity or strobe mode.
IPX4 rated design, three meter impact resistance tested, pocket clip, adjustable lanyard, adjustable grip-ring, serialized for positive identification, water resistant, anti-roll head, LED Solid State power regulation provides maximum light output throughout battery life.
L x W x D: 5.4" x 1.25" x .88" (13.72 x 3.18 x 2.24 cm)