Feature: Material:Aluminium alloy Skid-proof Design Reflector: Convex Lens Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent. Water Resistance Design, "O" ring sealed,but don't put it into water long time 5-mode adjustable Brightness,High/Middle/Low/Strobe/SOS Battery type: 2 x 18650 3.7v Battery Colour : Black SuperBright, blinding Effect Adjustable focus for different usage : Zoom In/Out to adjust its Focus: x1, x250, x500, x1000, x2000 Model of LED: T6 LED Switch Location: Tailcap (middle) Convenience carry Dimensions (L x Head Dia. x Body Dia.): (7.95 x 1.37 x 0.98)inch / (20.2 x 3.5 x 2.5)cm 18650 Rechargeable Battery : Model: 18650 Voltage: 3.7V Battery Capacity: 3000mAh Size(mm): 64.5 (length) x 18.2 (body diameter) Net Weight(2pcs): 100g Suitable for Self Safety,most indoor like home maintenance,checking car or as a spare light in the garage; and outdoor activities like camping,fishing, hiking, night fishing, night flying, sailing, caving and hunting etc. Package Included: 1 x T6 Flashlight 2 x Rechargeable 18650 Battery