Features1High Brightness LED Beads: Utilizing LED beads, this tail light emits a high-intensity light, effectively alerting surrounding pedestrian and vehicle, thus enhancing your safety during night rides. 2Intelligent Mode: The intelligent mode includes brake sensing and smart on/off functions. With a high-precisions sensing chip, it detects braking and illuminates with a 3-second warning to the rear, ensuring enhanced safety. The smart on/off feature automatically turns on in low light conditions and turns off in bright light, conserving battery power. 36 Lighting Modes: Choose from six lighting modes - constant light, breathing flash, slow flash, rhythm flash, endurance flash, and quick flash. Easily switch between modes based on your preferences and riding conditions. 4Rechargeable Battery: The built-in rechargeable battery offers long-lasting performance with low power consumption. The battery indicator allows you to monitor the remaining power in real-time, ensuring you are aware of the battery status. 5Reliable Quality: Crafted with high-quality ABS material, this tail light exhibits exceptional durability, sturdiness, and resistance to aging. With an IP66 waterproof and dustproof rating, it effortlessly withstands outdoor weather conditions. 6Compact and Easy to Install: Its compact and lightweight design makes it easy to install and use. It supports seat cushion, seatpost, and saddlebag installation, making it suitable for both mountain and road bikes.SpecificationThe Intelligent Bicycle Tail Light is designed to ensure your safety during night rides. With high-quality LED beads, it emits a bright light that easily catches the attention of pedestrian and vehicle around you. Equipped with intelligent features, this tail light provides added safety and convenience. Its compact and reliable design, along with easy installation options, makes it suitable for both mountain and road bikes.Features:High Brightness LED Beads: Utilizing LED beads, this tail light emits a high-intensity light, effectively alerting surrounding pedestrian and vehicle, thus enhancing your safety during night rides.Intelligent Mode: The intelligent mode includes brake sensing and smart on/off functions. With a high-precisions sensing chip, it detects braking and illuminates with a 3-second warning to the rear, ensuring enhanced safety. The smart on/off feature automatically turns on in low light conditions and turns off in bright light, conserving battery power.6 Lighting Modes: Choose from six lighting modes - constant light, breathing flash, slow flash, rhythm flash, endurance flash, and quick flash. Easily switch between modes based on your preferences and riding conditions.Rechargeable Battery: The built-in rechargeable battery offers long-lasting performance with low power consumption. The battery indicator allows you to monitor the remaining power in real-time, ensuring you are aware of the battery status.Reliable Quality: Crafted with high-quality ABS material, this tail light exhibits exceptional durability, sturdiness, and resistance to aging. With an IP66 waterproof and dustproof rating, it effortlessly withstands outdoor weather conditions.Compact and Easy to Install: Its compact and lightweight design makes it easy to install and use. It supports seat cushion, seatpost, and saddlebag installation, making it suitable for both mountain and road bikes.Specifications:Type: Regular/Smart(optional)Color: BlackMaterial: ABSInput Voltage: 5VBattery Capacity: Regular: 250mAh Smart: 400mAhWaterproof: IP66Item Size: 33 * 33 * 30mm/ 1.3 * 1.3 * 1.2inItem Weight: Regular: 19g/ 0.67oz Smart: 21g/ 0.74ozPackage Size: 130 * 73 * 36mm/ 5.1 * 2.9 * 1.4inPackage Weight: 65g/ 2.29ozPacking List:1 * Taillight1 * Seat Post Bracket1 * Seat Bow Bracket1 * Mounting Strap4 * Cable Tie1 * USB Cable1 * AntiSlip PadPackage List1 * Taillight1 * Seat Post Bracket1 * Seat Bow Bracket1 * Mounting Strap4 * Cable Tie1 * USB Cable1 * AntiSlip Pad