The Princeton Tec APEX Rechargeable Black Headlamp has 90 hours of burn time. The rechargeable lithium ion battery pack can clip to the headstrap, moved to the users belt, or stashed in their pack using the extended power cable. A USB charging cable comes with the headlamp, making it easy to replenish battery power. With a single regulated Maxbright LED partnered with four white regulated Ultra bright LEDs, the Apex Rechargeable provides either a powerful spot beam or a bright flood. Two big buttons make switching between modes easy.