Streamlight Knucklehead with Clip has a 360 degree rotating head and has an alligator clip for attaching the flashlight to turnout gear, and a powerful magnet that adheres to most metal surfaces. Dual C4 LEDs on the Knucklehead with Clip provide a flood lighting pattern with 200 lumens in high. Rechargeable models of the Streamlight Knucklehead with Clip are available with your choice of charging options and include an alkaline battery tray; so the Knucklehead with Clip can be powered by 4 AA batteries (alkaline or lithium) in a pinch (see charging options in bullet points below). Non-rechargeable alkaline models of the Streamlight Knucklehead with Clip are also available (runs on 4 AA batteries).