WEST BIKING Bike Light Bicycle Smart Brake Tail Light Rechargeable Waterproof MTB Rear Light Ultralight Long Battery Life Bicycle Warning Light

Aluminum Alloy Resistant To Falling, Wear Resistant, StrongerThe Main Body Of The Bike Light Is Designed With Aluminum Alloy Material, Which Is More Resistant To Scratches And Falls.Intelligent Brake SensingAfter Sensing Braking, W4/W4S Will Immediately Switch To Brake Light Mode The Taillight Will Be Highly Bright For 2 Seconds To Remind The Rear To Pay Attention And Improve Safety.Vibration Sensing Automatically Wake UpThe Taillights Automatically Turn Off When Stationary For One Minute With The Lights On Automatically Lights Up When VibratingLight Sensing Automatically Turn On LightsIn Intelligent Mode, The Built-In Photosensitive Element Monitors Environment Brightness Automatically Light Up In Dark Light, And Automatically Turn Off In Bright Light