1. Easy installation: Our advanced bicycle lights can be installed in a few seconds without any tools or other devices. The lights can be mounted on bicycles, backpacks, helmets, or other parts to ensure maximum safety. 2. High - quality silicone alloy: We carefully use durable silicone alloy to create classic luminous bicycle lights, enabling them to withstand various weather conditions, road use, and even minor impacts. Moreover, they are waterproof. 3. Multiple lighting modes: Each of our lights has three specific lighting modes - high - beam, low - beam, and strobe. Therefore, you can be easily seen in the early morning fog, at dusk, at night, and at dawn. 4. Safety design: These ultra - bright LED lights are equipped with two lithium - ion batteries, and the visible distance can reach half a mile. This helps other cyclists, drivers, and pedestrians spot you in low - light or completely dark environments. 5. Product materials: The outer shell is made of silicone, and the inner shell is made of ABS engineering plastic and a circuit board. 6. Lamp beads: LED lamp beads are stable, durable, and highly malleable. They have a multi - functional fixing method, are waterproof and splash - proof, and are easy to operate. 7. Batteries: Two AG - 10 batteries.