LED Focus Headlamp, 350LM Brightest Headlamp,90&deg; Rotatable Rechargeable Waterproof Flashlight, Outdoor Camping Running Hiking Fishing Headlamp Premium Quality:High quality aicraft aluminum material, there is switch and charging hole with rubber waterproof cover, can be used outside. 3 Light Modes,Rechargeable: Build-in lithium rechargeable battery and H3 LED light, have three brightness mode: high-low-flash. Four hours is full of electricity, in High or flash brightness mode, work 1 hour with 350lm brightness. In low brightness mode, work 3 hours with 180lm brightness. Long Irradiation Distance: Just rotate the lens can adjust irradiation distance which is 100M - 200M / 328 - 656 ft. Head band is soft and elastic, comfortable to wear. It can be adjusted to fit your head size. 90 degree rotation of head light, set it at the best angle as you like. Perfect for outdoor activities at night, such as sport, running, biking, hiking, camping, construction work, walking, etc.