LED Headlight and Tail Light Ultra-bright LED White Light Water resistant, shockproof, and erode prevent design, Operation life up to 100,000 hours, never need replace . 3 operation mode: Steady, Flash or fast flashing. change mode by pressing the button on the top 7 Modes: 1 steady, 2 kinds of flashing and 4 kinds of running light Suitable for any bicycle to give alert in bad weather