Hybridlight Solar/Rechargeable 75 Lumen LED Head Lamp. Use Any Light Source to Charge with The Detachable Compact Solar Panel. Quick Charge with Included USB Cable HYBRID SOLAR RECHARGEABLE: Charge using the detachable solar panel outdoors OR indoors under incandescent lighting, OR by connecting via the included USB cable for rapid charge COMPACT AND LIGHTWEIGHT: The perfect comfortable Headlamp to wear for hours. Rotates 120 degrees vertically EXTREMELY LONG RUN TIME: 25 hours of light on one full charge guarantees you will never run out of light. Even when you're out for weeks DURABLE AND WATER RESISTANT: Perfect for Biking, Hiking or working under the hood of your car HOLDS A CHARGE FOR YEARS: Always ready when you need it. Perfect for any emergency