Cateye Sync Kinetic 40/50 Rechargeable Rear Light - Black / Rear / Rechargeable

A CatEye SYNC-enabled light that increases your visibility as you slow. With a built-in accelerometer that switches to burst mode as you decelerate, SYNC Kinetic gives you an extra level of defense. Use alone or in combination with other models in the CatEye SYNC family for unparalleled levels of 360-degree visibility, day or night.   CatEye SYNC offers: Multiple lights in SYNC. Just one touch SYNCs all. Smarter visibility, day or night. All angles, covered. Be seen all-round, year round.   Features 50lm. Built-in acceleration sensor for Kinetic mode (Automatically turns on High mode when deceleration is detected.). Mounts securely to the seat post with the rubber band (Ø12-32 mm). Lithium-ion polymer rechargeable battery. USB rechargeable. Low battery indicator. Mode memory function. Battery Auto Save (The mode automatically changes to flashing when the battery power gets low.). Main LED for visibility from distance.   Runtime Kinetic: 50 Lm burst in all modes. High: 40 Lm, 1.5 hrs . Low: 4 Lm, 15 hrs. Flashing: 30 Lm, 50 hrs. Group Ride: 40 Lm, 15 hrs (low pulse). Rapid: 50 Lm, 20 hrs. Daytime HyperFlash: 50 / 50 Lm, 30 hrs.