CygoLite Metro Plus and HotShot Pro Light Set800 lumen headlight with nine modes, 150 lumen taillight with six modes, for use on mountains, roads, and commutingHeadlight side light ports for 180-degree visibilityHeadlight includes a lockout function prevents accidental light activationBattery: 1, 18650 Lithium Ion , 3.7(V), 12.58(Wh), 48g, 1, 762836 Lithium Ion, 3.7(V), 3.07(Wh), 19g, IncludedLow battery indicator and light memory mode saves the mode the rider is using when the light is turned offWater-resistant design for all riding conditionsItem SpecificationsBatteryLi IonLumens Front800Lumens Rear150Recharge TypeUSBWeight199 CygoLite Metro Plus/HotShot Pro Headlight/Taillight Set Headlight & Taillight Set UPC: 745025075113