Visibility from behind and from the side matters on every ride, and the Lezyne Zecto2 Drive 200+ Rear Light covers both with up to 200 lumens. Wide Angle Optics spread that light across up to 270 degrees, and a disruptive Daytime Flash mode adds a flash for daylight rides. The compact light mounts to most seat posts, including round, D-shaped and aero shapes. What Our Gearhead(R) Experts Are Saying:"Through a long, rain-soaked ride, the light kept flashing right to the end. The waterproof body took the whole downpour and kept going."