NiteRider Solas 250 TaillightThe NightRider Solas 250 Taillight has 2 light levels and 2 separate flash modes for maximum visibility, including Daylight Visible Flash (DVF). It only takes 4 hours to fully charge, and the handy low battery status indicator lets you know when it’s finally time to plug in. The custom reflector makes you and your ride extra-noticeable, and the easy on and off seat post strap mount (with quick release tab) ensures a simple, yet secure installation. This device also comes equipped with “Group Ride Mode" for cyclists who want to stay visible but not distract others in the pack.702699050921