The Microstream USB is a compact Lithium ion battery powered flashlight designed for use in all markets. It features a tail cap switch, momentary or constant on operation, high and low beams, a combination pocket/hat clip for convenience, and amazing brightness and run time for a light of its size and price. The aluminum housing with Type II Military Spec anodizing helps make the light extremely durable and abrasion resistant. To charge the light, slide the head cover forward to expose the micro USB port.Specifications and Features:Type: FlashlightOutput: 50/250 LumensBulb Type: C4 LEDBody Diameter: 0.60"OAL: 3.87"Weight: 1.20 ozBattery Size: Rechargeable Lithium IonProofs: IPX4 Water ResistantColor: Black AnodizedMaterial: Machined Aluminum AlloyRechargeable: YesFilter Color: WhiteSwitch Type: Push Button Tail Cap