4 Modes Of Switch: The Bike lights can be support full light, disco flash, flash fast and SOS signal flash mode. With just one push of the bike tail light button, you instantly have 4 useful lighting modes. Bike Lights Rechargeable : The rear bike light is built in 230 mAh rechargeable lithium battery, the bike rear light run time can be up to 26 hours. It comes with 2 charging cable that charges from your computer, power bank or any device with USB port. Easy to Install: Bike taillights equipped with adjustable silicone tape and velcro. The bike back light flexible mount fits any seat post, seat stay, helmet, saddle bag, backpack, skateboard, scooter, stroller, wheelchair or dog collar. Perfect for use as a bike rear, back, and tail light. Multi-Function: With simple structure and lightweight, our bicycle lights are easy to carry. Rated IPX5 waterproof. About the size of a car key and weighing less than 1 oz, these bicycle tail light can be attached to pet collars, backpacks, helmets, and jogging or walking gear. Bike Lights For Night Riding: The led safety light emits an eye-catching beam that can be alert other riders, drivers, and walkers spot you when riding in low light or complete darkness, need not worry about being knocked over by others. Hiking: LED safety lights are easy to clip on any part of clothing, outdoor gear, running gear, children's clothing, anything. Walk your pet: LED security lights can be perfect for use on shoes, leashes, dog collars, dog leashes and more Running: The lightweight design makes it an ideal safety light that can be mounted anywhere on your arm, forearm, ankle, calf, etc Bike riding: Bike taillights fit comfortably and stay on your bike frame, seat posts, handlebars, helmet and more. Our bike taillights are used for a variety of purposes to help or alert other passengers, drivers and pedestrians to spot you in low light or total darkness.