Bicycle Parts Bright and obvious light: rechargeable LED bicycle tail light offers a wide visual angle of 150 degree and output of 110 lumens, which are broad and bright enough for you to look clearly at the front, providing maximum visibility in the dark or foggy morning USB rechargeable: computer, power bank or other electronic equipment with USB interface can be applied to charge 110 lumens bike rear light by connected to USB cable; Only 2 hours are needed to fully charge the light, then it can operate from 4 to 10 hours; Its better to charge fully before first using 5 stylish lighting modes: waterproof bike light has 5 illumination settings, including steady blue, flash blue, stead red, flash red, strobe red and blue, you can choose an appropriate mode based on the environment or weather condition Wide scope of application: cycling safety flashlight light is easy to mount on the bike frame, crossbar, seat pole or other bike parts, even can be placed on your helmet, backpack, wheelchair, scooter, suitable for city bike, mountain bike, road bike, foldable bike, etc.; It is better to stretch the rubber strap to a suitable position for better fixing Flickering light to draw attention: There are 5 light modes for people to choose, including steady blue, flash blue, stead red, flash red, strobe red and blue, they have respective visual effect to play a reminding function, passerby and driver will notice your sign by your bicycle light, proving more safety to your cycling trip. Convenient to charge: Compared to other light operated by batteries, bike tail light is convenient to charge by connected to computer, power bank or other electronic equipment with USB cable, you dont need to frequently change the battery, convenient to use for a long while. Multiple Modes Waterproof: The bicycle light is red blue, lasting up to 2-4 hours depending on the mode you use. Weather tight design ensures all condition use.