Product Radiation distance: above 300 metersSize: 120*40mm*25mm3 switch Mode: High / Middle / StrobeBattery capacity: 2400mAhWorking voltage: 3.7VProduct color: BlackProduct Material: aluminium alloycontinuous working time4~7 HoursPower supply: built-in 18650 batteryWaterproof: IPX-65style 1 :1*Front LightsStyle 2 Style 3 & style 4:1*Front Lights+1*taillightMULTIFUNCTIONAL SAFETY LIGHT: Easy to install. Lightweight and durable bike tail light that can be mounted on all bikes, children"s bike, adult bicycle, handlebars, seat posts, dog collars or anywhere. It also can be used as helmet lights, backpack lights, warning lights and moreSET YOUR OWN LIGHT MODES: 3 light mode options:High / Middle / Strobe. You can switch different modes according to your needs and different occasions to get the best lighting experienceNO BATTERIES REQUIRED: Built in USB charge port for this bike rear light (USB cable included). Please charge it when the indicator light is red. It will turn green when fully chargedWATERPROOF BICYCLE LIGHT: The light is made of IPX5 rated water resistant material to ensure a safe use in heavy rainFUNCTION: This bicycle light is ideal for cycling, hiking, camping or outdoor activities. led usb bike lights is ideal for safety at nightOur products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-22903 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don& 39;t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it ",