FRONT: Compact cycling light with a machined aluminum body. A bright, single LED system provides up to 400 lumens and a Daytime Flash mode. Battery runtime has increased by 2.5 hours for up to 20 hours of runtime. It features eight output modes and cutouts for side visibility. Charging is simple with an integrated cable-free USB stick. It’s available in five colors (Black, Silver, Red, Blue, Purple) and securely straps to a variety of handle bar shapes and sizes. REAR: Compact, aero-post compatible safety light featuring a Daytime Flash mode. Its co-molded construction is super light, yet durable and has an IPX7 waterproof rating. NEW -- Up to 19.5 hours of runtime (6.5 hour increase) with highly improved optics. Its Wide Angle Lens offers up to 270° of visibility. The KTV Drive Pro Rear provides up to 75 lumens (Daytime Flash) and five output/flash modes. And it features an integrated USB stick for convenient cable-free recharging. Also available in pairs.