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 Streamlight Sidewinder Compact II; White; Green; Blue; Infrared LED Sidewinder Compact II;Wht;