The PolyTac X USB is a 600 lumen tactical flashlight that can be use either a proprietary Streamlight 18650 USB rechargeable Li-Ion battery or two CR123A disposable batteries. The PolyTac X USB is a complete rechargeable system that comes with a charge cord and an 18650 button top battery that features an integrated micro-USB charge port. It features the Rocky Stipple grip texture, a two way pocket clip and a TEN-TAP programable switch. Specifications Output/Runtime High 600 Lumens and Runs 210 Minutes Medium 260 Lumens ande Runs 345 Minutes Low 35 Lumens and Runs 36 Hours Material Aluminum Battery Type Rechargeable 18650 Li-ion or CR123A Included Attachment Method Clip Body Diameter 1 Beam Distance 672' Bulb Type C4 LED Bulb Color White Switch Type Tailcap Strobe Yes Length 5.46 Weight 4.90 oz Waterproof No Color Black SOLD QUANTITY 1