300 Lumen Bike Taillight with Smart Brake Sensor, IPX6 Waterproof Rear Light for Night Riding

300 Lumen Output with Two LEDs for Maximum Visibility Smart Brake Sensor Automatically Turns On When Braking Ambient Light Sensor Adjusts Brightness Based on IPX6 Waterproof Rating Resistant to Heavy Rain USB-C Rechargeable with 2-Hour Charge Time and 200-Hour Runtime