GSLC&reg; 1800 Lumens Cree Xm-l T6 U2 LED Waterproof 3 Modes Zoomable Rotating Headlamp Cree LED Headlight with Charger and 2 X 4200mah 18650 Rechargeable Batteries Portable LED Headlamp for for Outdoor Hiking, Riding, Camping and Other Activities 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 GSLC Headlamp uses revolutionary focus technology, producing very bright beam of light. Wonderful headlamp suitable for outdoor sports, such as camping, traveling, hiking.