The Streamlight Sidewinder Compact II is an extremely versatile lighting tool with white light and a variety of color LEDs for multiple tasks. It is made of high impact super tough nylon polymer with all O-ring sealed openings, 185 degree body rotation, unbreakable scratch-resistant lens, and a compound on/off mode selector switch. A rubber dome actuator and 4 position pull-to-turn locking rotary selector knob with IR LED tactile indicator provides easy operation even when wearing heavy gloves. Included is one AA alkaline battery; also accepts one CR123A lithiumor AA lithium battery, and a helmet mount and elastic headstrap.