Smart ON/OFF --- 2 Sensing on and off mode: Shock Sensing & Light Sensing. Light up automatically when on dim light condition or start riding, light off automatically when on strong daylight condition or stop riding.;IPX6 Waterproof --- High waterproof performance.It can be also use on rainy day.;Built in battery --- Built in 900mAH Large-capacity rechargeable battery.36 hours use time after full charged.;Convenient for use --- Easy to install and remove on bike handlebar with a rubber band.;High performance --- 16 LEDs, 36 Flashing Hours, 7 lighting modes,50Lumens, 5000h service life

• ONEU LED Bike Tail Light Warning Flashing USB Rechargeable Smart Bicycle Rear Light Shock Sensing & Dayight Sensing
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ONEU LED Bike Tail Light Warning Flashing USB Rechargeable Smart Bicycle Rear Light Shock Sensing & Dayight SensingONEU