The Osage River Rechargeable Headlamp offers a practical, hands-free means to extend your time outdoors so you can remain active at night. The headlamp provides a super bright 1800 lumen light source, as well as a half power mode for when less illumination is required. The third mode is a flashing function, which serves to make you more visible to vehicles and other people out at night. Easily cycle between these 3 modes using the green power button. The light beam can be zoomed in by moving the light housing forward or back; change the headlamp�s angle by tilting the light housing. During long-term use, the headlamp�s LED light housing can become warm to the touch. Use caution when adjusting. The battery housing features a red LED light, so that you will also be visible from the back. This headlamp comes with 2 rechargeable lithium batteries, a UL approved wall charger, a 12V car charger, and a USB cable charger so you can charge the batteries on the go. Each charger is equipped with an indicator light that will let you know when charging is complete. A full charge from an empty battery takes between 7 and 8 hours, and a full charge will last up to 12 hours at half power. The Rechargeable Headlamp should be charged with the light off. Use the headlamp for early morning running, hiking, caving, backpacking, construction, bicycling, and late night reading. This headlamp�s long battery life also makes it a practical light option during power outages. The Rechargeable Headlamp is a versatile light source and is fully adjustable to meet the demands of your adventures.