KTV Drive Pro+ Rear is a compact seat post compatible rear light that delivers up to 150 lumens and six output modes. It offers up to 20 hours of maximum battery life and a very ominous Daytime Flash mode. The light uses our wide angle optics lens design to provide 270° visibility, is durable, rigorously tested to IPX7 waterproof standards and an integrated USB stick allows for convenient, cable-free charging. 6 modes including Daytime Flash mode and Race mode Compatible with Infinite Light Power Pack+ Optional GoPro mount