Bike LED Tail Light has one touch switch with four different lighting modes, depending on your preference, Full and half brightness, fast and slow flashing lightBike Night Warning Light emits a striking wide angle beam that is visible from a distance, so You dont have to worry about it being overlookedCycling USB Rechargeable Warning Light is equipped with a built-in rechargeable lithium battery With 2 charging cables for use on computers, power banks and all devices with USB portBicycle Rear light is mainly made of wear-resistance, corrosion-resistance and durable ABS material for a long time useBike Rear Light is compatible with all types of bikes, oversized road bikes, city bikes and any mountain bike and kids bike