【Smart Brake Warning & Auto On/Off】This taillight features smart brake warning: upon detecting braking or deceleration, it switches to high-brightness mode for 2 seconds to alert others. It auto-off after 2.5 minutes of stillness and auto-on when vibration is detected. Light sensor keeps it off in bright environments but still triggers brake alert. Smart Mode must be enabled (blue flashing light)
【Light Sensor】Built-in high-sensitivity light sensor automatically turns the light off in sufficient ambient light and on when it gets dark—no manual switching needed.
【6 Lighting Modes & Memory Function】Six modes: Constant On, Flowing Light, Breathing Flash, "Wind-Fire Wheel," Single Flash, and Double Flash—easily switched with one button. Memory function recalls the last used mode when turned back on.
【USB-C Rechargeable & IP65 Waterproof】USB-C rechargeable with a 400mAh battery. Provides up to 40 hours in low-light mode and 8 hours in high-brightness mode. IP65 waterproof rating withstands rain and splashes for reliable all-weather use.
【Lightweight & Easy to Install】Carbon-fiber textured finish. Compact 38×29mm size, weighs just 27g. Mounts on saddle rails or seat post without tools—installs or detaches in seconds.