Knog's Bilby is a high-performance, lightweight and intuitive headlamp for the most demanding outdoor enthusiasts and their outdoor situations. It offers 400 lumens of light output, USB charging and an impressive 5-hour battery life. What's more, it allows you to use 6 lighting modes that can be expanded up to 8 via the KNNOG Modemaker app.For the first time, there's a special light boost mode that lets you increase the maximum light output for 10 minutes. Just when you need it most.Like all Knog products, the Bilby USB is rechargeable simply by plugging the light module directly into any USB port. A completely discharged headlamp can then be fully recharged in just 4 hours. So there's no need to use disposable batteries, which also saves the environment.Advantages: - rechargeable via USB, no wiring required - each of the 6 modes has a brightness setting - soft, comfortable silicone strap with locking tab included - waterproof: IP65 - LED for reading, night LED (red), spot, medium and wide angle The Bilby USB headlamp is rechargeable by simply plugging into a USB port.