The Strip Drive Pro Alert Rear is an advanced LED bike taillight with featuring our Wide Angle Optics lens that provides up to 270° of visibility and our custom-programmed “Alert” technology. The ultimate visibility solution, Alert technology provides varied outputs to signal rider deceleration and stopping, signaling your actions to traffic and other cyclists. The light turns solid during deceleration and then provides a distinct flash pattern while stopped.The light’s co-molded construction is super compact, highly water resistant, and boasts five LEDs offering up to 300 lumens of output or 28 hours of max runtime. With 6 output modes, including a Daytime Flash mode, it’s got options for any time of day or night. A versatile mounting system attaches to aero or round posts and it’s micro-USB rechargeable. This is the ultimate cycling taillight for impressive daytime visibility and superior visibility after dark.