The Adventure line of NiteRider Headlamps receive a healthy bump-up in lumens this year. Now pumping 320 lumens output on High. The Adventure 320 features advanced components that deliver optimal performance with multiple output settings including an SOS safety flash. Inside the lightweight body, a lithium polymer battery conveniently charges via USB, reducing waste of disposable alkaline batteries. The Adventure 320 is a well-rounded performer that shines right where you need it so that you can focus on your night adventure. There is a Tail Light Clip that is incorporated on the back that fits all NiteRider Tail Lights and provides greater safety for walking or running at night. Meets FL 1 Standard IP67, protected against the effects of immersion in water to depth between 15 cm and 1 meter.