Dosens USB Rechargeable Headlight Bicycle Light Headlamp Bikelight Torch Flashlight, LED headtorch 18650 Battery for Hiking Camping Riding Fishing Hunting Made of durable aircraft-grade aluminum, avoid high temperature, fall-off protection. Light weight--requires 1X 18650 only, USB RECHARGEABLE - Efficient and Modern way to save time and money. Our bicycle light set can be charged from any wall charger, a laptop or even a power bank on the go. HASSLE FREE, NO LONGER NEED BATTERY PACK- Comes with 18650 battery which is rechargeable by USB cord and take 4 hours to fully charge. Meanwhile, its maximum runtime is up to 80 hours in ultra low setting. Perfect fit for outdoor sports, such as camping, traveling, hiking.