The Sidewinder Compact II, Multi-battery, Multi-lead, Hands-free flash light. The Sidewinder Compact II accepts multiple power sources one CR123A lithium battery, one AA lithium battery or one AA alkaline battery to provide ultimate flexibility in the field. The same great features as the original Sidewinder Compact lightweight, multi-directional and multi-functional. The difference It accepts a variety of different battery types to ensure you always have a power source wherever and whenever duty calls. Features Uses one 3V CR123A lithium battery included . Also accepts 1 AA lithium battery or 1 AA alkaline battery C4 LED, white, impervious to shock with 50,000Hr lifetime 5mm Blue LED, 470 nm peak wavelength, impervious to shock with 100,000Hr lifetime 5mm IR LED, 880 nm peak wavelength, impervious to shock with 100,000Hr lifetime 5mm Red LED, 630 nm peak wavelength, impervious to shock with 100,000Hr lifetime Specifications Sidewinder Compact II Light Output and Battery Run Time Pull-to-turn rotary selector knob prevents accidental mode changes and allows selection of LED color 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 Powers on at low output and progresses to high intensity in four discrete steps IR Safe mode prevents accidental activation and battery depletion while in IR mode Double-click push button to initiate strobe all LED colors have a strobe function 185 tilting body. Rotates 360 on helmet mount Durable clip attaches to helmet, head strap or MOLLE vest. Cord attachment hole provided in clip capable of supporting 25lbs of load 3 meter impact resistance tested IPX7/waterproof to 1 meter for 30 minutes. O-Ring and gasket sealed openings. Meets MIL-STD-810F, Method 512.4 Assembled in USA SOLD QUANTITY 1