The Strip Alert StVZO is an advanced LED bike taillight with our custom-programmed “Alert” technology. It features our StVZO certified Wide Angle Optics lens that provides up to 270° of visibility and an innovative automatic Alert sensor. When decelerating, the light will get brighter to alert riders or vehicles from behind. The light will then change back to its previous output mode once the rider resumes his or her ride. Its co-molded construction is super compact, highly water resistant, and boasts five LEDs for up to 35 lumens of output. With three output modes, it’s got options for any time 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 the best possible visibility.