ITEM NAME:Bike Rear Tail Light LED Bicycle Smart Brake Induction Light Cycling Warnin D5X1 Bike Rear Tail Light LED Bicycle Smart Brake Induction Light Cycling Warnin D5X1 Description: Multi functional: Can be used as a bicycle LED tail light, warning light or headlights. Except the bike handle bar, you can place it in the seat post, helmet bags and more. Cool for Cycling trip: If you are a person who like cycling trip, hiking and other outdoor activities, this durable light will be the essential in your journey. 5 Lighting Modes: Red highlight; Red Weaken; Red fast flashing; Red slow flashing; SOS flashing. (Highlight mode can be used for 5 hours) USB Rechargeable: Built-in 650mAh Li-polymer rechargeable battery, it stops wasting your money to buy batteries for it. The light can be charged on your computer or any device with a USB port. Only takes 1.5 hours to fully charge. Working time depends on the light mode ou choose. Ultra Bright and Waterproof Easy to install and Remove: Quick release rubber strap, and then mount it on or remove from your bike. Totally hassle-free! A very convenient tool for bike. You can take it off or put it on at anytime, anywhere which will effectively prevent the theft. Special Notes: Please don't immerse the USB port in water though it is waterproof Each mode has a brake sensing warning function, which switches to the 3 second flashing mode when the brake is sensed, accompanied by a beep warning. Introduction Use light source: COB red wick Charging method: USB charging Lamp brightness: 60 lumens Charging time: 1.5-2 hours Use battery: 650mA internal battery Light gear position; 5 gears adjustable Life time: 10 hours or so Waterproof rating: IPX6 rating Color: Blue + Red Material: ABS Product weight: 31g Package Included: 1 * Bicycle Taillight 1 * USB Charging Cable 1 * standard base 1 * multi-purpose holder