BESTSUN Zoomable 1800 Lumens CREE XM-L T6 LED Waterproof 3 Modes Adjust Focus Headlight 18650 Battery Rechargeable LED Head Flashlight Torch with AC Charger and Batteries Zoomable Rotating ,Adjustable base is provided for each head lamp, with back and forth inclination Applies efficient booster circuit to internal wiring, working voltage is wide 3 switch modes and waterproof design, aluminum alloy case, avoiding high temperature, anti fall off This top well Headlamp uses revolutionary focus technology, producing very bright beam of light Wonderful headlamp suitable for outdoor sports, such as camping, traveling, hiking