[Super Bright Dual Eye Taillight Up to 500 Lumens] Can emit a powerful 500 lumen bicycle taillight, 180 degree spread angle and 200 meters visibility, with a runtime of more than 30 hours, it is safe to ride. Built-in high-intensity reflector, even if the taillight has no power, it can still protect your safety. [6 Stylish Lighting Modes] Easy switching depending on different road conditions during daily cycling. Horse racing mode - 30 hours, side flash mode - 6.5 hours, breathing mode - 4 hours, slow flash mode - 20 hours, flash mode - 10.5 hours, constant light mode - 5 hours. Whether you are walking your dog, cycling, skateboarding, camping or hiking, our safety lights keep you safe. [USB Rechargeable] When connected to a device with a USB port, it can charge the bicycle taillight. Save the hassle of changing batteries. A full charge takes 1 - 1.5 hours, and the longest use time can reach more than 30 hours. Fully charge it before first use. [IPX6 Waterproof Rainproof and Snowproof] IPX6 waterproof bicycle taillight ensures that you can experience its excellent function in all difficult weather conditions. A flashing pattern will catch their attention, and a wide light area will keep you out of danger. color: Black Material: ABS+PC Package contents: 1 x taillight 1 x strap 1 x USB cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.