G Keni Smart Bike Tail Light: Brake Sensing, Auto On/Off, Waterproof, USB Rechargeable, Ultra Bright LED Cycling Safety Accessory

About this item

• [ FOUR LIGHT MODES & HIGH LUMEN LED ] - There are 4 light modes for your choice, (1)Normal Flash Mode, (2)Breathing Flash Mode, (3)Fast Flash Mode, (4)Steady On Mode, enjoy your cycling as you wish, High lumen COB Led bike taillight makes you more visible, it's a perfect bike light for night riding.
• [ SMART BRAKE SENSING & EASY to INSTALL ] - Automatically switch to high light mode when braking, ultra-bright for 5 secs lights warning back rider to enhance your safety. You can mount it under the saddle with metal mounting bracket or mount to the seat post with adjustable silicone strap.
• [ BRIGHTNESS ADJUSTABLE & HIGH LUMEN ] - The brightness of this bike rear light is adjustable, Max to 120 Lumen,1000m Viewable, in the steady on mode, just long press the button to adjust the brightness that you need, it Built-in 400mAh Li-ion battery, it can lasting 50 hours (will be influenced by the brightness that you setting) runing time when fully charged. four blue indicator lights, each shows 25% capacity, No longer worry about forget to charge.
• [ ALUMINUM ALLOY SHELL & IPX6 WATERPROOF ] - Made of aluminum alloy shell, this bike rear light has a nice touch and awesome appearance. It's waterproof/dustproof and shockproof, suitable for any harsh working environment. we guarantee a 12-month warranty, 30-day money back and 24/7 customer service to make it no risk for you to purchase this taillight.
• [AUTO ON/OFF FOR ENERGY CONSERVATION] - This intelligent bike tail light features both a Motion Sensor and a Light Sensor. It automatically turns off after 30 seconds of no motion detection. When you touch the light or if the bike is moving, it will activate automatically. Additionally, when riding in bright sunlight, the tail light will turn off due to the functionality of the light sensor. IF YOU PREFER RIDING DURING THE DAY AND WANT THE TAIL LIGHT TO REMAIN ON CONSTANTLY, select mode 3 or mode 4 to disable the Light Sensor functionality.