The most advanced front and rear bike light system with Radar technology Includes Radar Drive and a React Drive Custom wireless system connects both lights and features advanced vehicle detection Cross compatible with select ANT+ head units, This kit takes visibility and safety to the next level Features Lezyne premiere LED technology, optics and lenses Manually control both lights through Radar App React Drive Front features built in LED indicators that alert of approaching vehicles from behind when connected to Radar Drive IPX7 Waterproof with USB-C charging ports Front -Max 1200 lumens / 70 hours runtime Rear - Max 300 lumens / 20 hours runtime Attributes Battery Type Li-Ion Bracket Rubber strap Light Type LED Output 1200 / 300 lumens Position Front and Rear Primary Color Black Run Time Up to 70h F / 20h R Rechargeable Yes