WINDFIRE Zoomable Super Bright CREE LED Headlamp 3 Modes Adjustable Focus Head Torch Light Flashlight with AC Charger for Hiking, Camping, Riding (with Built-in Li-ion rechargeable battery) Zoom adjustable headlamp. Luminous Flux: output bright can come to 1200 lumens (Maximum). Stretch out or draw back the headlamp, the beam can be focused to a square light or spread out. Internal wiring uses the efficient booster circuit. Rechargeable headlamp power can be utilized to the largest extent. Adjustable base is provided for headlamp to rotate 90 degrees, with back and forth inclination. Support waterproof. Perfect headlamp fit for outdoor sports, such as camping, traveling, hiking.