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