Description ULTRA-LIGHT COMFORTABLE: The headlamp is super light (only 62g) and compact (58*29*32mm), allowing you to feel no pressure when wearing your head. The breathable and adjustable elastic headband is perfect for adults and children, keeps the lamp comfortable and stable on your head even while running. SUPER BRIGHT ADJUSTABLE ANGLE: 100 lumens brightness provides visibility up to 60 meters. It can enlarge the lighting area compared with other lamp beads, providing excellent brightness for any night activity. The headlight beam angle can be adjusted up to 60 degrees with an easy up or down motion, allowing you to illuminate where you need it. USB RECHARGEABLE: With a built-in 800mAh rechargeable lithium battery, this powerful headlamp provides illumination time of up to 12 hours (at low brightness setting) or up to 5 hours (at high brightness setting) ). It only takes 2 hours to be fully charged via USB port (USB Cable Included). IPX4 WATERPROOF: Waterproof headlamp is suitable for indoors and outdoors, no matter what the weather is raining or snowing. So you can use it for night reading, dog walking, night fishing, hunting, jogging, cycling, camping, hiking, caving, DIY, night repair or even in emergency at home or at work. package1Waterproof headlamp.