Streamlight ProTac HL-X Mid Size Flashlight - This flashlight is powered by dual fuel, uses two CR123A lithium batteries (included) also accepts one Steamlight rechargeable 18650 lithium battery (not included) TEN-TAP, programmable switch for user selectable operation. Durable anodized machined aircraft aluminum construction with IPX7 waterproof. Gasket-sealed glass lens. Anti-roll head prevents the light from rolling away when placed on a flat surface. Features 1000 lumens 3 operating modes / 1.) high/strobe/low, 2.) high only, 3.) lowithmedium/high IPX7, waterproof to 1m for 30 minutes, 2m impact resistance tested Solid State power regulation provides maximum light output throughout battery life Anti-roll facecap Removable pocket clip Serialized for positive identification RoHS compliant Length: 5.43in Head diameter: 1.44in Body diameter: 1.0in