Small, handy and very bright: the CatEye Volt 100 Helmet Lamp. With its 100 lumen output illuminating a wide area, it is great at lighting up the way. It has three light modes (high, medium, flash) and lasts up to 30 hours on the lowest setting. Thanks to the mount provided, it is very easy to attach to a helmet and can be quickly and easily stowed away in a backpack when not being used. You can save on buying batteries, as there is a USB port for charging. The Volt 100 Helmet Lamp is highly practical and always there in case of emergency.
Note: Does not comply with German road traffic regulations.