Features： 1、High-Quality LED Beads: The bicycle light features premium LED beads, delivering high brightness and a wide illumination ranges for enhanced visibility during night rides. 2、Multiple Lighting Modes: With 6 lighting modes including strong light, weak light, breathing light, flashing, etc. The bike light allows you to adjust the brightness according to your preference and the convenient line control switch makes operation effortless. 3、130dB Loud Horn: Equipped with a high-volume horn, effectively alerting pedestrian and vehicle around you for enhanced safety during your rides. 4、Long Endurance: Built-in large capacity rechargeable battery with low power consumption, offering long-lasting battery life. The light also supports USB output, serving as a power bank for emergency phone charging, with a battery indicator light. 5、Premium Construction: Made of high-quality ABS material, the light is durable, impact-resistant, and not easily damaged. With an IP44 waterproof rating, it can withstand light rain for reliable performance. 6、Tool-Free Installation: Designed with a rotating buckle for easy installation and removal without the need for tools, suitable for mountain bikes, road bikes, scooters, and more. Specification： Features: High-Quality LED Beads: The bicycle light features premium LED beads, delivering high brightness and a wide illumination ranges for enhanced visibility during night rides. Multiple Lighting Modes: With 6 lighting modes including strong light, weak light, breathing light, flashing, etc. The bike light allows you to adjust the brightness according to your preference and the convenient line control switch makes operation effortless. 130dB Loud Horn: Equipped with a high-volume horn, effectively alerting pedestrian and vehicle around you for enhanced safety during your rides. Long Endurance: Built-in large capacity rechargeable battery with low power consumption, offering long-lasting battery life. The light also supports USB output, serving as a power bank for emergency phone charging, with a battery indicator light. Premium Construction: Made of high-quality ABS material, the light is durable, impact-resistant, and not easily damaged. With an IP44 waterproof rating, it can withstand light rain for reliable performance. Tool-Free Installation: Designed with a rotating buckle for easy installation and removal without the need for tools, suitable for mountain bikes, road bikes, scooters, and more. Specifications: Color: Black Material: ABS Light Source: 5LED+12SMD/8LED+20SMD(optional) Battery: 5LED: Built-in 2000mAh Lithium Battery              8LED: Built-in 4000mAh Lithium Battery Waterproof: IP44 Item Size: 5LED: 90 * 40 * 51mm/ 3.5 * 1.6 * 2.0in                 8LED: 138 * 40 * 51mm/ 5.4 * 1.6 * 2.0in Package Size: 5LED: 135 * 78 * 60mm/ 5.3 * 3.1 * 2.4in                       8LED: 185 * 78 * 60mm/ 7.3 * 3.1 * 2.4in Package Weight: 5LED: 178g/ 6.3oz                             8LED: 250g/ 8.8oz Packing List: 1 * Bike Light 1 * USB Cable Package List： 1 * Bike Light 1 * USB Cable