This LED light emits 850 lumens and includes a replaceable lithium-ion battery. Simple to recharge via USB. Featuring three light settings and a flashing mode for the perfect level of illumination. Fitting is easy and tool free using the Slide-Lock mounting system including helmet mount. Splashproof. Includes Micro-USB charging cable. Lights listed under "Outdoor" may not be affixed to bikes/vehicles or used on public roads in Germany.