Details The Apex Rechargeable takes the durability and power of the original Princeton Tec powerhouse Apex headlamp and offers an option to cut down on battery cost and waste. The waterproof Apex Rechargeable provides either a powerful spot beam or a bright flood with two big buttons that make switching between modes easy and offers upwards of 13 hours of runtime. The rechargeable lithium ion battery pack comes clipped to the headstrap and can be moved to your belt or pack with an extended power cable. A USB charging cable comes with the headlamp, making it easy to replenish the Apex Rechargeable&';s battery power. Included with Apex Rechargeable: Rechargeable battery Battery pack bracket USB charging cable Extension cable Nylon headstrap + crown strap Velcro loop strap Specifications Power: 550 Lumens Lamp: 1 Maxbright LED (regulated) 4 Ultrabright LEDs (regulated) Burn-Time: 13 hours Batteries: Rechargeable Lithium Ion Weight: 10oz / 283g Water Resistant: IPX7 Warranty: Lifetime