5 lighting modes, turn right and turn left, red light is always on, red and blue lights flash or all flash. You can switch between different light modes at the push of a button as needed, using this turn signal will be a breeze. With 150 lumens of brightness, the turn signals and The bike’s reflective brake lights are clearly visible from over 100 meters day or night. Visible from afar, you will no longer be afraid to get on your bike and you will be at the highest level of safety when riding thanks to this powerful LED lighting. Built-in rechargeable lithium battery, charges the rear light with turn signal via USB cable, fast charging from your computer, power outlet or power bank, all cables are included.