【Unique Design and Multiple Lighting Modes】: Each bike light is designed with 2 main LEDs and 19 peripheral auxiliary LEDs, controlled by independent switches. The bike headlight has 2 x 4 modes and the bike taillight has 2 x 6 modes, which can be used individually or in combination according to your needs. 【Long-lasting and Battery Indicator】: Our bike light is equipped with a 1100mAh high-capacity battery and the bike taillight with 350mAh. In "Slow Flashing" mode, the headlights can last up to 58 hours and the taillights 25 hours. When the battery is lower than 20%, the power switch indicator will flash green to remind you to charge the light, so you never have to worry about running out of power. 【Easy to Install】: The bike light can be installed with bare hands without any other tools, even by children. In 4 easy steps - Put on the ring, attach it to the handlebar and snap it into the provided hole; you can adjust it horizontally or vertically accordingly. 【IPX6 Waterproof】: Thanks to its IPX6 waterproof rating, this powerful LED bike light works even on rainy or foggy days, allowing you to fully enjoy your ride. The USB port is equipped with a waterproof silicone cover, which effectively blocks water and extends its service life. 【Multiple Uses】: The front and rear bicycle lights can be used not only for cycling on technical trails or uneven roads, but also for hiking, camping or as an emergency flashlight during outdoor activities. It is essential to ensure safety in any environment that requires lighting.