Syncros Campbell 20 Aero i L Rear Light Totally Aero The Syncros Campbell 20 Aero Light has been specifically designed for the new Foil. Integrated in the Duncan SL Aero CFT seatpost, it's super easy to use with 3 running modes while still keeping the aero advantage of the new seatpost. At only 39g, you'll hardly notice it's there. Features Designed for the Foil 3 and Plasma 7 seatposts with the supplied clip3 running modes including a high, daytime, and nighttime mode Works with the Duncan SL Aero CFT seatpost Flash Modes Mode High Daytime Nighttime Lumens202020Run Time (h:min)8:0022:0017:00Specifications Number of LEDs15 COB LEDs Battery Type Rechargeable, USB-CWeight39g Water Resistant Yes Low Power Indicator No Mounting Type Duncan SL Aero CFT Seatpost Battery Mounting Internal | Syncros | Campbell 20 Aero Il Rear Light Os