The Lezyne Zecto Drive Max 400 Rear is a high-output LED rear bike light from Lezyne, suited to riders who need strong daytime and nighttime visibility across a wide range of riding conditions. Delivering up to 400 lumens with a maximum runtime of 100 hours, it spans commuter cycling, road riding, and everyday use where dependable rear visibility is a priority. The light features 270 Wide Angle Optics and a highly disruptive Daytime Flash mode, extending its usefulness beyond low-light hours into bright conditions where being seen from the side matters. The rugged composite body is rated to IPX7 waterproof standards, and the water-resistant USB-C charging port makes recharging straightforward without opening the unit. The user-replaceable 1300 mAh battery and compatibility with most quarter-turn mounting systems add long-term practicality, and the mount accommodates round, D-shape, and aero seatpost profiles. USB-C cable not included.Outputs up to 400 lumens with a maximum runtime of 100 hours across all modes270 Wide Angle Optics extend visibility well beyond a direct rear sightlineDaytime Flash mode is tuned for high disruption in bright ambient conditionsIPX7-rated waterproof construction with a water-resistant USB-C charging portUser-replaceable 1300 mAh battery Compatible with most quarter-turn mounting systems including round, D-shape, and aero seatpost profilesComposite construction at 59.8g keeps total weight minimal for a light in this output classItem SpecificationsBatteryUSBLumens Rear400Recharge TypeUSBWeight59.8 Lezyne Zecto Drive Max 400 Taillight Taillight EAN: 4710582541100 MPN: 1-LED-8R-MAX-V304