The Strip Drive StVZO Rear is a powerful tail light with German StVZO optimized lens and five ultra bright LEDs providing class leading brightness. Its lightweight, durable construction is waterproof and built to provide side visibility for added safety. Three power modes allow for customization in variable conditions and the Mode Memory feature returns to the selected mode when the light is turned on. An integrated USB stick provides convenient cable free battery charging and a rugged, versatile seatpost strap securely mounts to a wide variety of round and aero posts.