Bike Tail Light Auto On/Off Bright 20 LEDs Rear Bike Light 5 Lighting Modes USB C Rechargeable IP65 Waterproof Bicycle Taillight

Highlight description: Product Name : Bike Tail Light Material : Aviation Aluminium + High Strength Transparent PC Size : Light : 3.4x4cm/1.34x1.57 inch Cushion Mount : 5.6x1.8x1.8cm/2.2x0.71x0.71 inch Seat Post Mount : 11x1.5cm/4.33x0.59 inch Round Base Diameter : 2.5cm/0.98 inch Hex Wrench : 5.1x1.7cm/2.01x0.67inch Power On/Off : Press and hold for 1.5 seconds Battery Life : Steady On 5H , Fast Flashing 8H , Slow Flashing 10H , Strobing 10H , Breathing Flash 15H 【 20 High Brightness LED Beads 】 The bike tail light is equipped with 20 high brightness LED beads , offering bright yet soft light (non glaring) and enhancing visibility during night rides 【 Auto Sensing Technology 】 This bike taillight has a auto sensing function : turns off automatically after 40 seconds of inactivity and lights up instantly when vibration is detected (during movement) 【 Double Bracket Flexible Installation 】 The bicycle tail light features double bracket design , supporting either seat post or saddle mounting . Tool free installation for seat post , easy to set up and compatible with various bicycle types 【 Aviation Aluminum and IP65 Waterproof 】 Bicycle taillight's shell made of aviation aluminum , anti drop , wear resistant and sturdy . IP65 waterproof rating ensures reliable performance in rain or wind , suitable for mountain biking , road cycling and other riding scenarios . 【 5 Light Modes and Long Battery Life 】 The rear bike light supports 5 adjustable modes (slow flashing , breathing flash , strobing , steady on , fast flashing) . Battery life ranges from 5-15 hours (varies by mode) , meeting different riding duration and scenario needs Parts List: 1 x Taillight 1 x Seat Post Mount 1 x Cushion Mount 1 x Type C Cable 1 x Hex Wrench 1 x User Manual