Serfas’s TSL-S150+ headlight is perfect to bring along on your evening rides and weekday commutes. And, the five different modes are powered by a long-lasting, rechargeable lithium-ion battery. Plus, the battery is user-replaceable. With the included USB cable and wall charger adaptor, you can conveniently recharge your light just about anywhere. It also includes quick-release handlebar and helmet mounts.