Specification:Emitter type: XML T6Casing material: Aluminum AlloyCasing Color: Silver & BlackLamp Diameter: approx 38mm3 Modes: High / Low / StrobePower Supply: 2x 18650 Battery (Battery NOT included.)Features:Adjustable focus range for different usage. (Hunting, cycling, climbing, camping and outdoor activities,daily home,etc.)Working voltage is wide and can utilize the batteries in the largest extent.Water-resistant,please be assured use in rainy day.The head strap can be adjusted.You can adjust the suitable size for you.Package Included: 1x T6 HeadlampNote:This headlamp flashlight can be charged directly. But the charged adapter is NOT included.