Scorpion X is a full featured tactical C4 LED flashlight with a high, medium and low mode plus a strobe. It is next generation C4 LED technology, impervious to shock with a 50,000 hour lifetime, and unbreakable, polycarbonate lens with scratch resistant coating. It has 3 modes: High 11,000 candela peak beam intensity, 200 Lumens, 2.5 hours runtime Low 550 candela peak beam intensity, 10 Lumens, 50 hours runtime, and Strobe. It has 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, O-ring sealing protects against moisture. LED Solid State Power Regulation provides maximum light output throughout battery life. It also has "Anti-Roll" head.